diff --git a/Cargo.lock b/Cargo.lock
index 9d04b83..493ec46 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -3,4 +3,14 @@
 [[package]]
 name = "docx-core"
 version = "0.1.0"
+dependencies = [
+ "xml-rs 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
 
+[[package]]
+name = "xml-rs"
+version = "0.8.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[metadata]
+"checksum xml-rs 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)" = "541b12c998c5b56aa2b4e6f18f03664eef9a4fd0a246a55594efae6cc2d964b5"
diff --git a/docx-core/Cargo.toml b/docx-core/Cargo.toml
index bfac336..95cfdd6 100644
--- a/docx-core/Cargo.toml
+++ b/docx-core/Cargo.toml
@@ -6,4 +6,5 @@ edition = "2018"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
-[dependencies]
\ No newline at end of file
+[dependencies]
+xml-rs = "0.8.0"
\ No newline at end of file
diff --git a/docx-core/examples/example.rs b/docx-core/examples/example.rs
index 321cc34..9a850eb 100644
--- a/docx-core/examples/example.rs
+++ b/docx-core/examples/example.rs
@@ -1,5 +1,5 @@
 extern crate docx_core;
 
 fn main() {
-  println!("{}", docx_core::add_one(1));
+  docx_core::simple();
 }
\ No newline at end of file
diff --git a/docx-core/fixtures/hello/[Content_Types].xml b/docx-core/fixtures/hello/[Content_Types].xml
new file mode 100644
index 0000000..dc111cb
--- /dev/null
+++ b/docx-core/fixtures/hello/[Content_Types].xml
@@ -0,0 +1,3 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Types xmlns="http://schemas.openxmlformats.org/package/2006/content-types"><Override PartName="/_rels/.rels" ContentType="application/vnd.openxmlformats-package.relationships+xml"/><Override PartName="/docProps/app.xml" ContentType="application/vnd.openxmlformats-officedocument.extended-properties+xml"/><Override PartName="/docProps/core.xml" ContentType="application/vnd.openxmlformats-package.core-properties+xml"/><Override PartName="/word/_rels/document.xml.rels" ContentType="application/vnd.openxmlformats-package.relationships+xml"/><Override PartName="/word/settings.xml" ContentType="application/vnd.openxmlformats-officedocument.wordprocessingml.settings+xml"/><Override PartName="/word/fontTable.xml" ContentType="application/vnd.openxmlformats-officedocument.wordprocessingml.fontTable+xml"/><Override PartName="/word/document.xml" ContentType="application/vnd.openxmlformats-officedocument.wordprocessingml.document.main+xml"/><Override PartName="/word/styles.xml" ContentType="application/vnd.openxmlformats-officedocument.wordprocessingml.styles+xml"/>
+</Types>
\ No newline at end of file
diff --git a/docx-core/fixtures/hello/_rels/.rels b/docx-core/fixtures/hello/_rels/.rels
new file mode 100644
index 0000000..f0b72e7
--- /dev/null
+++ b/docx-core/fixtures/hello/_rels/.rels
@@ -0,0 +1,3 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Relationships xmlns="http://schemas.openxmlformats.org/package/2006/relationships"><Relationship Id="rId1" Type="http://schemas.openxmlformats.org/package/2006/relationships/metadata/core-properties" Target="docProps/core.xml"/><Relationship Id="rId2" Type="http://schemas.openxmlformats.org/officeDocument/2006/relationships/extended-properties" Target="docProps/app.xml"/><Relationship Id="rId3" Type="http://schemas.openxmlformats.org/officeDocument/2006/relationships/officeDocument" Target="word/document.xml"/>
+</Relationships>
\ No newline at end of file
diff --git a/docx-core/fixtures/hello/docProps/app.xml b/docx-core/fixtures/hello/docProps/app.xml
new file mode 100644
index 0000000..f819b8e
--- /dev/null
+++ b/docx-core/fixtures/hello/docProps/app.xml
@@ -0,0 +1,2 @@
+<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<Properties xmlns="http://schemas.openxmlformats.org/officeDocument/2006/extended-properties" xmlns:vt="http://schemas.openxmlformats.org/officeDocument/2006/docPropsVTypes"><Template></Template><TotalTime>0</TotalTime><Application>LibreOffice/6.0.7.3$Linux_X86_64 LibreOffice_project/00m0$Build-3</Application><Pages>1</Pages><Words>1</Words><Characters>5</Characters><CharactersWithSpaces>5</CharactersWithSpaces><Paragraphs>1</Paragraphs></Properties>
\ No newline at end of file
diff --git a/docx-core/fixtures/hello/docProps/core.xml b/docx-core/fixtures/hello/docProps/core.xml
new file mode 100644
index 0000000..aa2d79a
--- /dev/null
+++ b/docx-core/fixtures/hello/docProps/core.xml
@@ -0,0 +1,2 @@
+<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<cp:coreProperties xmlns:cp="http://schemas.openxmlformats.org/package/2006/metadata/core-properties" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:dcterms="http://purl.org/dc/terms/" xmlns:dcmitype="http://purl.org/dc/dcmitype/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"><dcterms:created xsi:type="dcterms:W3CDTF">2019-09-13T19:32:17Z</dcterms:created><dc:creator></dc:creator><dc:description></dc:description><dc:language>ja-JP</dc:language><cp:lastModifiedBy></cp:lastModifiedBy><dcterms:modified xsi:type="dcterms:W3CDTF">2019-09-13T19:32:34Z</dcterms:modified><cp:revision>1</cp:revision><dc:subject></dc:subject><dc:title></dc:title></cp:coreProperties>
\ No newline at end of file
diff --git a/docx-core/fixtures/hello/hello.docx b/docx-core/fixtures/hello/hello.docx
new file mode 100644
index 0000000..a0c0223
Binary files /dev/null and b/docx-core/fixtures/hello/hello.docx differ
diff --git a/docx-core/fixtures/hello/word/_rels/document.xml.rels b/docx-core/fixtures/hello/word/_rels/document.xml.rels
new file mode 100644
index 0000000..6ac87fd
--- /dev/null
+++ b/docx-core/fixtures/hello/word/_rels/document.xml.rels
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Relationships xmlns="http://schemas.openxmlformats.org/package/2006/relationships">
+    <Relationship Id="rId1" Type="http://schemas.openxmlformats.org/officeDocument/2006/relationships/styles" Target="styles.xml"/>
+    <Relationship Id="rId2" Type="http://schemas.openxmlformats.org/officeDocument/2006/relationships/fontTable" Target="fontTable.xml"/>
+    <Relationship Id="rId3" Type="http://schemas.openxmlformats.org/officeDocument/2006/relationships/settings" Target="settings.xml"/>
+</Relationships>
\ No newline at end of file
diff --git a/docx-core/fixtures/hello/word/document.xml b/docx-core/fixtures/hello/word/document.xml
new file mode 100644
index 0000000..775c58a
--- /dev/null
+++ b/docx-core/fixtures/hello/word/document.xml
@@ -0,0 +1,33 @@
+<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<w:document xmlns:o="urn:schemas-microsoft-com:office:office" 
+    xmlns:r="http://schemas.openxmlformats.org/officeDocument/2006/relationships" 
+    xmlns:v="urn:schemas-microsoft-com:vml" 
+    xmlns:w="http://schemas.openxmlformats.org/wordprocessingml/2006/main" 
+    xmlns:w10="urn:schemas-microsoft-com:office:word" 
+    xmlns:wp="http://schemas.openxmlformats.org/drawingml/2006/wordprocessingDrawing" 
+    xmlns:wps="http://schemas.microsoft.com/office/word/2010/wordprocessingShape" 
+    xmlns:wpg="http://schemas.microsoft.com/office/word/2010/wordprocessingGroup" 
+    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
+    xmlns:wp14="http://schemas.microsoft.com/office/word/2010/wordprocessingDrawing" 
+    xmlns:w14="http://schemas.microsoft.com/office/word/2010/wordml" mc:Ignorable="w14 wp14">
+    <w:body>
+        <w:p>
+            <w:pPr>
+                <w:pStyle w:val="Normal"/>
+                <w:rPr></w:rPr>
+            </w:pPr>
+            <w:r>
+                <w:rPr></w:rPr>
+                <w:t>Hello</w:t>
+            </w:r>
+        </w:p>
+        <w:sectPr>
+            <w:type w:val="nextPage"/>
+            <w:pgSz w:w="11906" w:h="16838"/>
+            <w:pgMar w:left="1134" w:right="1134" w:header="0" w:top="1134" w:footer="0" w:bottom="1134" w:gutter="0"/>
+            <w:pgNumType w:fmt="decimal"/>
+            <w:formProt w:val="false"/>
+            <w:textDirection w:val="lrTb"/>
+        </w:sectPr>
+    </w:body>
+</w:document>
\ No newline at end of file
diff --git a/docx-core/fixtures/hello/word/fontTable.xml b/docx-core/fixtures/hello/word/fontTable.xml
new file mode 100644
index 0000000..d7d5fd9
--- /dev/null
+++ b/docx-core/fixtures/hello/word/fontTable.xml
@@ -0,0 +1,31 @@
+<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<w:fonts xmlns:w="http://schemas.openxmlformats.org/wordprocessingml/2006/main" 
+    xmlns:r="http://schemas.openxmlformats.org/officeDocument/2006/relationships">
+    <w:font w:name="Times New Roman">
+        <w:charset w:val="00"/>
+        <w:family w:val="roman"/>
+        <w:pitch w:val="variable"/>
+    </w:font>
+    <w:font w:name="Symbol">
+        <w:charset w:val="02"/>
+        <w:family w:val="roman"/>
+        <w:pitch w:val="variable"/>
+    </w:font>
+    <w:font w:name="Arial">
+        <w:charset w:val="00"/>
+        <w:family w:val="swiss"/>
+        <w:pitch w:val="variable"/>
+    </w:font>
+    <w:font w:name="Liberation Serif">
+        <w:altName w:val="Times New Roman"/>
+        <w:charset w:val="01"/>
+        <w:family w:val="roman"/>
+        <w:pitch w:val="variable"/>
+    </w:font>
+    <w:font w:name="Liberation Sans">
+        <w:altName w:val="Arial"/>
+        <w:charset w:val="01"/>
+        <w:family w:val="swiss"/>
+        <w:pitch w:val="variable"/>
+    </w:font>
+</w:fonts>
\ No newline at end of file
diff --git a/docx-core/fixtures/hello/word/settings.xml b/docx-core/fixtures/hello/word/settings.xml
new file mode 100644
index 0000000..a516ac4
--- /dev/null
+++ b/docx-core/fixtures/hello/word/settings.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<w:settings xmlns:w="http://schemas.openxmlformats.org/wordprocessingml/2006/main">
+    <w:zoom w:percent="100"/>
+    <w:defaultTabStop w:val="709"/>
+    <w:compat>
+        <w:doNotExpandShiftReturn/>
+    </w:compat>
+</w:settings>
\ No newline at end of file
diff --git a/docx-core/fixtures/hello/word/styles.xml b/docx-core/fixtures/hello/word/styles.xml
new file mode 100644
index 0000000..d8d8049
--- /dev/null
+++ b/docx-core/fixtures/hello/word/styles.xml
@@ -0,0 +1,94 @@
+<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<w:styles xmlns:w="http://schemas.openxmlformats.org/wordprocessingml/2006/main" 
+    xmlns:w14="http://schemas.microsoft.com/office/word/2010/wordml" 
+    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" mc:Ignorable="w14">
+    <w:docDefaults>
+        <w:rPrDefault>
+            <w:rPr>
+                <w:rFonts w:ascii="Liberation Serif" w:hAnsi="Liberation Serif" w:eastAsia="Noto Sans CJK JP" w:cs="Lohit Devanagari"/>
+                <w:kern w:val="2"/>
+                <w:sz w:val="24"/>
+                <w:szCs w:val="24"/>
+                <w:lang w:val="en-US" w:eastAsia="ja-JP" w:bidi="hi-IN"/>
+            </w:rPr>
+        </w:rPrDefault>
+        <w:pPrDefault>
+            <w:pPr>
+                <w:widowControl/>
+            </w:pPr>
+        </w:pPrDefault>
+    </w:docDefaults>
+    <w:style w:type="paragraph" w:styleId="Normal">
+        <w:name w:val="Normal"/>
+        <w:qFormat/>
+        <w:pPr>
+            <w:widowControl/>
+        </w:pPr>
+        <w:rPr>
+            <w:rFonts w:ascii="Liberation Serif" w:hAnsi="Liberation Serif" w:eastAsia="Noto Sans CJK JP" w:cs="Lohit Devanagari"/>
+            <w:color w:val="auto"/>
+            <w:kern w:val="2"/>
+            <w:sz w:val="24"/>
+            <w:szCs w:val="24"/>
+            <w:lang w:val="en-US" w:eastAsia="ja-JP" w:bidi="hi-IN"/>
+        </w:rPr>
+    </w:style>
+    <w:style w:type="paragraph" w:styleId="Style14">
+        <w:name w:val="見出し"/>
+        <w:basedOn w:val="Normal"/>
+        <w:next w:val="Style15"/>
+        <w:qFormat/>
+        <w:pPr>
+            <w:keepNext w:val="true"/>
+            <w:spacing w:before="240" w:after="120"/>
+        </w:pPr>
+        <w:rPr>
+            <w:rFonts w:ascii="Liberation Sans" w:hAnsi="Liberation Sans" w:eastAsia="Noto Sans CJK JP" w:cs="Lohit Devanagari"/>
+            <w:sz w:val="28"/>
+            <w:szCs w:val="28"/>
+        </w:rPr>
+    </w:style>
+    <w:style w:type="paragraph" w:styleId="Style15">
+        <w:name w:val="Body Text"/>
+        <w:basedOn w:val="Normal"/>
+        <w:pPr>
+            <w:spacing w:lineRule="auto" w:line="276" w:before="0" w:after="140"/>
+        </w:pPr>
+        <w:rPr></w:rPr>
+    </w:style>
+    <w:style w:type="paragraph" w:styleId="Style16">
+        <w:name w:val="List"/>
+        <w:basedOn w:val="Style15"/>
+        <w:pPr></w:pPr>
+        <w:rPr>
+            <w:rFonts w:cs="Lohit Devanagari"/>
+        </w:rPr>
+    </w:style>
+    <w:style w:type="paragraph" w:styleId="Style17">
+        <w:name w:val="Caption"/>
+        <w:basedOn w:val="Normal"/>
+        <w:qFormat/>
+        <w:pPr>
+            <w:suppressLineNumbers/>
+            <w:spacing w:before="120" w:after="120"/>
+        </w:pPr>
+        <w:rPr>
+            <w:rFonts w:cs="Lohit Devanagari"/>
+            <w:i/>
+            <w:iCs/>
+            <w:sz w:val="24"/>
+            <w:szCs w:val="24"/>
+        </w:rPr>
+    </w:style>
+    <w:style w:type="paragraph" w:styleId="Style18">
+        <w:name w:val="索引"/>
+        <w:basedOn w:val="Normal"/>
+        <w:qFormat/>
+        <w:pPr>
+            <w:suppressLineNumbers/>
+        </w:pPr>
+        <w:rPr>
+            <w:rFonts w:cs="Lohit Devanagari"/>
+        </w:rPr>
+    </w:style>
+</w:styles>
\ No newline at end of file
diff --git a/docx-core/fixtures/hello_world/[Content_Types].xml b/docx-core/fixtures/hello_world/[Content_Types].xml
new file mode 100644
index 0000000..9c5c964
--- /dev/null
+++ b/docx-core/fixtures/hello_world/[Content_Types].xml
@@ -0,0 +1 @@
+<Types xmlns="http://schemas.openxmlformats.org/package/2006/content-types"><Default ContentType="image/png" Extension="png"></Default><Default ContentType="image/jpeg" Extension="jpeg"></Default><Default ContentType="image/jpeg" Extension="jpg"></Default><Default ContentType="image/bmp" Extension="bmp"></Default><Default ContentType="image/gif" Extension="gif"></Default><Default ContentType="application/vnd.openxmlformats-package.relationships+xml" Extension="rels"></Default><Default ContentType="application/xml" Extension="xml"></Default><Override ContentType="application/vnd.openxmlformats-officedocument.wordprocessingml.document.main+xml" PartName="/word/document.xml"></Override><Override ContentType="application/vnd.openxmlformats-officedocument.wordprocessingml.styles+xml" PartName="/word/styles.xml"></Override><Override ContentType="application/vnd.openxmlformats-package.core-properties+xml" PartName="/docProps/core.xml"></Override><Override ContentType="application/vnd.openxmlformats-officedocument.extended-properties+xml" PartName="/docProps/app.xml"></Override><Override ContentType="application/vnd.openxmlformats-officedocument.wordprocessingml.numbering+xml" PartName="/word/numbering.xml"></Override><Override ContentType="application/vnd.openxmlformats-officedocument.wordprocessingml.footnotes+xml" PartName="/word/footnotes.xml"></Override><Override ContentType="application/vnd.openxmlformats-officedocument.wordprocessingml.header+xml" PartName="/word/header1.xml"></Override><Override ContentType="application/vnd.openxmlformats-officedocument.wordprocessingml.footer+xml" PartName="/word/footer1.xml"></Override></Types>
\ No newline at end of file
diff --git a/docx-core/fixtures/hello_world/_rels/.rels b/docx-core/fixtures/hello_world/_rels/.rels
new file mode 100644
index 0000000..1399e4d
--- /dev/null
+++ b/docx-core/fixtures/hello_world/_rels/.rels
@@ -0,0 +1 @@
+<Relationships xmlns="http://schemas.openxmlformats.org/package/2006/relationships"><Relationship Id="rId1" Type="http://schemas.openxmlformats.org/officeDocument/2006/relationships/officeDocument" Target="word/document.xml"></Relationship><Relationship Id="rId2" Type="http://schemas.openxmlformats.org/package/2006/relationships/metadata/core-properties" Target="docProps/core.xml"></Relationship><Relationship Id="rId3" Type="http://schemas.openxmlformats.org/officeDocument/2006/relationships/extended-properties" Target="docProps/app.xml"></Relationship></Relationships>
\ No newline at end of file
diff --git a/docx-core/fixtures/hello_world/docProps/app.xml b/docx-core/fixtures/hello_world/docProps/app.xml
new file mode 100644
index 0000000..8993710
--- /dev/null
+++ b/docx-core/fixtures/hello_world/docProps/app.xml
@@ -0,0 +1 @@
+<Properties xmlns="http://schemas.openxmlformats.org/officeDocument/2006/extended-properties" xmlns:vt="http://schemas.openxmlformats.org/officeDocument/2006/docPropsVTypes"></Properties>
\ No newline at end of file
diff --git a/docx-core/fixtures/hello_world/docProps/core.xml b/docx-core/fixtures/hello_world/docProps/core.xml
new file mode 100644
index 0000000..3f8b481
--- /dev/null
+++ b/docx-core/fixtures/hello_world/docProps/core.xml
@@ -0,0 +1 @@
+<?xml version="1.0" encoding="UTF-8" standalone="yes"?><cp:coreProperties xmlns:cp="http://schemas.openxmlformats.org/package/2006/metadata/core-properties" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:dcterms="http://purl.org/dc/terms/" xmlns:dcmitype="http://purl.org/dc/dcmitype/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"><dc:creator>Un-named</dc:creator><cp:lastModifiedBy>Un-named</cp:lastModifiedBy><cp:revision>1</cp:revision><dcterms:created xsi:type="dcterms:W3CDTF">2019-09-13T19:25:28Z</dcterms:created><dcterms:modified xsi:type="dcterms:W3CDTF">2019-09-13T19:25:28Z</dcterms:modified></cp:coreProperties>
\ No newline at end of file
diff --git a/docx-core/fixtures/hello_world/hello_world.docx b/docx-core/fixtures/hello_world/hello_world.docx
new file mode 100644
index 0000000..9f37ec3
Binary files /dev/null and b/docx-core/fixtures/hello_world/hello_world.docx differ
diff --git a/docx-core/fixtures/hello_world/word/_rels/document.xml.rels b/docx-core/fixtures/hello_world/word/_rels/document.xml.rels
new file mode 100644
index 0000000..05a042b
--- /dev/null
+++ b/docx-core/fixtures/hello_world/word/_rels/document.xml.rels
@@ -0,0 +1 @@
+<Relationships xmlns="http://schemas.openxmlformats.org/package/2006/relationships"><Relationship Id="rId1" Type="http://schemas.openxmlformats.org/officeDocument/2006/relationships/styles" Target="styles.xml"></Relationship><Relationship Id="rId2" Type="http://schemas.openxmlformats.org/officeDocument/2006/relationships/numbering" Target="numbering.xml"></Relationship><Relationship Id="rId3" Type="http://schemas.openxmlformats.org/officeDocument/2006/relationships/footnotes" Target="footnotes.xml"></Relationship><Relationship Id="rId4" Type="http://schemas.openxmlformats.org/officeDocument/2006/relationships/header" Target="header1.xml"></Relationship><Relationship Id="rId5" Type="http://schemas.openxmlformats.org/officeDocument/2006/relationships/footer" Target="footer1.xml"></Relationship></Relationships>
\ No newline at end of file
diff --git a/docx-core/fixtures/hello_world/word/_rels/footer1.xml.rels b/docx-core/fixtures/hello_world/word/_rels/footer1.xml.rels
new file mode 100644
index 0000000..7b81324
--- /dev/null
+++ b/docx-core/fixtures/hello_world/word/_rels/footer1.xml.rels
@@ -0,0 +1 @@
+<Relationships xmlns="http://schemas.openxmlformats.org/package/2006/relationships"></Relationships>
\ No newline at end of file
diff --git a/docx-core/fixtures/hello_world/word/_rels/header1.xml.rels b/docx-core/fixtures/hello_world/word/_rels/header1.xml.rels
new file mode 100644
index 0000000..7b81324
--- /dev/null
+++ b/docx-core/fixtures/hello_world/word/_rels/header1.xml.rels
@@ -0,0 +1 @@
+<Relationships xmlns="http://schemas.openxmlformats.org/package/2006/relationships"></Relationships>
\ No newline at end of file
diff --git a/docx-core/fixtures/hello_world/word/document.xml b/docx-core/fixtures/hello_world/word/document.xml
new file mode 100644
index 0000000..9d20cc4
--- /dev/null
+++ b/docx-core/fixtures/hello_world/word/document.xml
@@ -0,0 +1,44 @@
+<w:document xmlns:wpc="http://schemas.microsoft.com/office/word/2010/wordprocessingCanvas" 
+    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
+    xmlns:o="urn:schemas-microsoft-com:office:office" 
+    xmlns:r="http://schemas.openxmlformats.org/officeDocument/2006/relationships" 
+    xmlns:m="http://schemas.openxmlformats.org/officeDocument/2006/math" 
+    xmlns:v="urn:schemas-microsoft-com:vml" 
+    xmlns:wp14="http://schemas.microsoft.com/office/word/2010/wordprocessingDrawing" 
+    xmlns:wp="http://schemas.openxmlformats.org/drawingml/2006/wordprocessingDrawing" 
+    xmlns:w10="urn:schemas-microsoft-com:office:word" 
+    xmlns:w="http://schemas.openxmlformats.org/wordprocessingml/2006/main" 
+    xmlns:w14="http://schemas.microsoft.com/office/word/2010/wordml" 
+    xmlns:w15="http://schemas.microsoft.com/office/word/2012/wordml" 
+    xmlns:wpg="http://schemas.microsoft.com/office/word/2010/wordprocessingGroup" 
+    xmlns:wpi="http://schemas.microsoft.com/office/word/2010/wordprocessingInk" 
+    xmlns:wne="http://schemas.microsoft.com/office/word/2006/wordml" 
+    xmlns:wps="http://schemas.microsoft.com/office/word/2010/wordprocessingShape" mc:Ignorable="w14 w15 wp14">
+    <w:body>
+        <w:p>
+            <w:pPr>
+            </w:pPr>
+            <w:r>
+                <w:rPr>
+                </w:rPr>
+                <w:t xml:space="preserve">Hello World</w:t>
+            </w:r>
+        </w:p>
+        <w:sectPr>
+            <w:pgSz w:w="11906" w:h="16838" w:orient="portrait">
+            </w:pgSz>
+            <w:pgMar w:top="1440" w:right="1440" w:bottom="1440" w:left="1440" w:header="708" w:footer="708" w:gutter="0">
+            </w:pgMar>
+            <w:cols w:space="708">
+            </w:cols>
+            <w:docGrid w:linePitch="360">
+            </w:docGrid>
+            <w:headerReference w:type="default" r:id="rId4">
+            </w:headerReference>
+            <w:footerReference w:type="default" r:id="rId5">
+            </w:footerReference>
+            <w:pgNumType w:fmt="decimal">
+            </w:pgNumType>
+        </w:sectPr>
+    </w:body>
+</w:document>
\ No newline at end of file
diff --git a/docx-core/fixtures/hello_world/word/footer1.xml b/docx-core/fixtures/hello_world/word/footer1.xml
new file mode 100644
index 0000000..05a9751
--- /dev/null
+++ b/docx-core/fixtures/hello_world/word/footer1.xml
@@ -0,0 +1 @@
+<w:ftr xmlns:wpc="http://schemas.microsoft.com/office/word/2010/wordprocessingCanvas" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:r="http://schemas.openxmlformats.org/officeDocument/2006/relationships" xmlns:m="http://schemas.openxmlformats.org/officeDocument/2006/math" xmlns:v="urn:schemas-microsoft-com:vml" xmlns:wp14="http://schemas.microsoft.com/office/word/2010/wordprocessingDrawing" xmlns:wp="http://schemas.openxmlformats.org/drawingml/2006/wordprocessingDrawing" xmlns:w10="urn:schemas-microsoft-com:office:word" xmlns:w="http://schemas.openxmlformats.org/wordprocessingml/2006/main" xmlns:w14="http://schemas.microsoft.com/office/word/2010/wordml" xmlns:w15="http://schemas.microsoft.com/office/word/2012/wordml" xmlns:wpg="http://schemas.microsoft.com/office/word/2010/wordprocessingGroup" xmlns:wpi="http://schemas.microsoft.com/office/word/2010/wordprocessingInk" xmlns:wne="http://schemas.microsoft.com/office/word/2006/wordml" xmlns:wps="http://schemas.microsoft.com/office/word/2010/wordprocessingShape"></w:ftr>
\ No newline at end of file
diff --git a/docx-core/fixtures/hello_world/word/footnotes.xml b/docx-core/fixtures/hello_world/word/footnotes.xml
new file mode 100644
index 0000000..edbd2f4
--- /dev/null
+++ b/docx-core/fixtures/hello_world/word/footnotes.xml
@@ -0,0 +1 @@
+<w:footnotes xmlns:wpc="http://schemas.microsoft.com/office/word/2010/wordprocessingCanvas" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:r="http://schemas.openxmlformats.org/officeDocument/2006/relationships" xmlns:m="http://schemas.openxmlformats.org/officeDocument/2006/math" xmlns:v="urn:schemas-microsoft-com:vml" xmlns:wp14="http://schemas.microsoft.com/office/word/2010/wordprocessingDrawing" xmlns:wp="http://schemas.openxmlformats.org/drawingml/2006/wordprocessingDrawing" xmlns:w10="urn:schemas-microsoft-com:office:word" xmlns:w="http://schemas.openxmlformats.org/wordprocessingml/2006/main" xmlns:w14="http://schemas.microsoft.com/office/word/2010/wordml" xmlns:w15="http://schemas.microsoft.com/office/word/2012/wordml" xmlns:wpg="http://schemas.microsoft.com/office/word/2010/wordprocessingGroup" xmlns:wpi="http://schemas.microsoft.com/office/word/2010/wordprocessingInk" xmlns:wne="http://schemas.microsoft.com/office/word/2006/wordml" xmlns:wps="http://schemas.microsoft.com/office/word/2010/wordprocessingShape" mc:Ignorable="w14 w15 wp14"><w:footnote w:type="separator" w:id="-1"><w:p><w:pPr><w:spacing w:after="0" w:line="240" w:lineRule="auto"></w:spacing></w:pPr><w:r><w:rPr><w:rStyle w:val="FootnoteReference"></w:rStyle></w:rPr><w:footnoteRef></w:footnoteRef></w:r><w:r><w:rPr></w:rPr><w:separator></w:separator></w:r></w:p></w:footnote><w:footnote w:type="continuationSeparator" w:id="0"><w:p><w:pPr><w:spacing w:after="0" w:line="240" w:lineRule="auto"></w:spacing></w:pPr><w:r><w:rPr><w:rStyle w:val="FootnoteReference"></w:rStyle></w:rPr><w:footnoteRef></w:footnoteRef></w:r><w:r><w:rPr></w:rPr><w:continuationSeparator></w:continuationSeparator></w:r></w:p></w:footnote></w:footnotes>
\ No newline at end of file
diff --git a/docx-core/fixtures/hello_world/word/header1.xml b/docx-core/fixtures/hello_world/word/header1.xml
new file mode 100644
index 0000000..08805f3
--- /dev/null
+++ b/docx-core/fixtures/hello_world/word/header1.xml
@@ -0,0 +1 @@
+<w:hdr xmlns:wpc="http://schemas.microsoft.com/office/word/2010/wordprocessingCanvas" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:r="http://schemas.openxmlformats.org/officeDocument/2006/relationships" xmlns:m="http://schemas.openxmlformats.org/officeDocument/2006/math" xmlns:v="urn:schemas-microsoft-com:vml" xmlns:wp14="http://schemas.microsoft.com/office/word/2010/wordprocessingDrawing" xmlns:wp="http://schemas.openxmlformats.org/drawingml/2006/wordprocessingDrawing" xmlns:w10="urn:schemas-microsoft-com:office:word" xmlns:w="http://schemas.openxmlformats.org/wordprocessingml/2006/main" xmlns:w14="http://schemas.microsoft.com/office/word/2010/wordml" xmlns:w15="http://schemas.microsoft.com/office/word/2012/wordml" xmlns:wpg="http://schemas.microsoft.com/office/word/2010/wordprocessingGroup" xmlns:wpi="http://schemas.microsoft.com/office/word/2010/wordprocessingInk" xmlns:wne="http://schemas.microsoft.com/office/word/2006/wordml" xmlns:wps="http://schemas.microsoft.com/office/word/2010/wordprocessingShape"></w:hdr>
\ No newline at end of file
diff --git a/docx-core/fixtures/hello_world/word/numbering.xml b/docx-core/fixtures/hello_world/word/numbering.xml
new file mode 100644
index 0000000..0f46501
--- /dev/null
+++ b/docx-core/fixtures/hello_world/word/numbering.xml
@@ -0,0 +1 @@
+<w:numbering xmlns:wpc="http://schemas.microsoft.com/office/word/2010/wordprocessingCanvas" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:r="http://schemas.openxmlformats.org/officeDocument/2006/relationships" xmlns:m="http://schemas.openxmlformats.org/officeDocument/2006/math" xmlns:v="urn:schemas-microsoft-com:vml" xmlns:wp14="http://schemas.microsoft.com/office/word/2010/wordprocessingDrawing" xmlns:wp="http://schemas.openxmlformats.org/drawingml/2006/wordprocessingDrawing" xmlns:w10="urn:schemas-microsoft-com:office:word" xmlns:w="http://schemas.openxmlformats.org/wordprocessingml/2006/main" xmlns:w14="http://schemas.microsoft.com/office/word/2010/wordml" xmlns:w15="http://schemas.microsoft.com/office/word/2012/wordml" xmlns:wpg="http://schemas.microsoft.com/office/word/2010/wordprocessingGroup" xmlns:wpi="http://schemas.microsoft.com/office/word/2010/wordprocessingInk" xmlns:wne="http://schemas.microsoft.com/office/word/2006/wordml" xmlns:wps="http://schemas.microsoft.com/office/word/2010/wordprocessingShape" mc:Ignorable="w14 w15 wp14"><w:abstractNum w:abstractNumId="0" w15:restartNumberingAfterBreak="0"><w:multiLevelType w:val="hybridMultilevel"></w:multiLevelType><w:lvl w:ilvl="0" w15:tentative="1"><w:start w:val="1"></w:start><w:numFmt w:val="bullet"></w:numFmt><w:lvlText w:val="●"></w:lvlText><w:lvlJc w:val="left"></w:lvlJc><w:pPr><w:ind w:left="720" w:hanging="360"></w:ind></w:pPr><w:rPr></w:rPr></w:lvl><w:lvl w:ilvl="1" w15:tentative="1"><w:start w:val="1"></w:start><w:numFmt w:val="bullet"></w:numFmt><w:lvlText w:val="○"></w:lvlText><w:lvlJc w:val="left"></w:lvlJc><w:pPr><w:ind w:left="1440" w:hanging="360"></w:ind></w:pPr><w:rPr></w:rPr></w:lvl><w:lvl w:ilvl="2" w15:tentative="1"><w:start w:val="1"></w:start><w:numFmt w:val="bullet"></w:numFmt><w:lvlText w:val="■"></w:lvlText><w:lvlJc w:val="left"></w:lvlJc><w:pPr><w:ind w:left="2160" w:hanging="360"></w:ind></w:pPr><w:rPr></w:rPr></w:lvl><w:lvl w:ilvl="3" w15:tentative="1"><w:start w:val="1"></w:start><w:numFmt w:val="bullet"></w:numFmt><w:lvlText w:val="●"></w:lvlText><w:lvlJc w:val="left"></w:lvlJc><w:pPr><w:ind w:left="2880" w:hanging="360"></w:ind></w:pPr><w:rPr></w:rPr></w:lvl><w:lvl w:ilvl="4" w15:tentative="1"><w:start w:val="1"></w:start><w:numFmt w:val="bullet"></w:numFmt><w:lvlText w:val="○"></w:lvlText><w:lvlJc w:val="left"></w:lvlJc><w:pPr><w:ind w:left="3600" w:hanging="360"></w:ind></w:pPr><w:rPr></w:rPr></w:lvl><w:lvl w:ilvl="5" w15:tentative="1"><w:start w:val="1"></w:start><w:numFmt w:val="bullet"></w:numFmt><w:lvlText w:val="■"></w:lvlText><w:lvlJc w:val="left"></w:lvlJc><w:pPr><w:ind w:left="4320" w:hanging="360"></w:ind></w:pPr><w:rPr></w:rPr></w:lvl><w:lvl w:ilvl="6" w15:tentative="1"><w:start w:val="1"></w:start><w:numFmt w:val="bullet"></w:numFmt><w:lvlText w:val="●"></w:lvlText><w:lvlJc w:val="left"></w:lvlJc><w:pPr><w:ind w:left="5040" w:hanging="360"></w:ind></w:pPr><w:rPr></w:rPr></w:lvl><w:lvl w:ilvl="7" w15:tentative="1"><w:start w:val="1"></w:start><w:numFmt w:val="bullet"></w:numFmt><w:lvlText w:val="○"></w:lvlText><w:lvlJc w:val="left"></w:lvlJc><w:pPr><w:ind w:left="5760" w:hanging="360"></w:ind></w:pPr><w:rPr></w:rPr></w:lvl><w:lvl w:ilvl="8" w15:tentative="1"><w:start w:val="1"></w:start><w:numFmt w:val="bullet"></w:numFmt><w:lvlText w:val="■"></w:lvlText><w:lvlJc w:val="left"></w:lvlJc><w:pPr><w:ind w:left="6480" w:hanging="360"></w:ind></w:pPr><w:rPr></w:rPr></w:lvl></w:abstractNum><w:num w:numId="1"><w:abstractNumId w:val="0"></w:abstractNumId></w:num></w:numbering>
\ No newline at end of file
diff --git a/docx-core/fixtures/hello_world/word/styles.xml b/docx-core/fixtures/hello_world/word/styles.xml
new file mode 100644
index 0000000..c9a6343
--- /dev/null
+++ b/docx-core/fixtures/hello_world/word/styles.xml
@@ -0,0 +1 @@
+<w:styles xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" xmlns:r="http://schemas.openxmlformats.org/officeDocument/2006/relationships" xmlns:w="http://schemas.openxmlformats.org/wordprocessingml/2006/main" xmlns:w14="http://schemas.microsoft.com/office/word/2010/wordml" xmlns:w15="http://schemas.microsoft.com/office/word/2012/wordml" mc:Ignorable="w14 w15"><w:docDefaults><w:rPrDefault><w:rPr></w:rPr></w:rPrDefault><w:pPrDefault><w:pPr></w:pPr></w:pPrDefault></w:docDefaults><w:style w:type="paragraph" w:styleId="Title"><w:name w:val="Title"></w:name><w:pPr></w:pPr><w:rPr><w:sz w:val="56"></w:sz></w:rPr><w:basedOn w:val="Normal"></w:basedOn><w:next w:val="Normal"></w:next><w:qFormat></w:qFormat></w:style><w:style w:type="paragraph" w:styleId="Heading1"><w:name w:val="Heading 1"></w:name><w:pPr></w:pPr><w:rPr><w:color w:val="2E74B5"></w:color><w:sz w:val="32"></w:sz></w:rPr><w:basedOn w:val="Normal"></w:basedOn><w:next w:val="Normal"></w:next><w:qFormat></w:qFormat></w:style><w:style w:type="paragraph" w:styleId="Heading2"><w:name w:val="Heading 2"></w:name><w:pPr></w:pPr><w:rPr><w:color w:val="2E74B5"></w:color><w:sz w:val="26"></w:sz></w:rPr><w:basedOn w:val="Normal"></w:basedOn><w:next w:val="Normal"></w:next><w:qFormat></w:qFormat></w:style><w:style w:type="paragraph" w:styleId="Heading3"><w:name w:val="Heading 3"></w:name><w:pPr></w:pPr><w:rPr><w:color w:val="1F4D78"></w:color><w:sz w:val="24"></w:sz></w:rPr><w:basedOn w:val="Normal"></w:basedOn><w:next w:val="Normal"></w:next><w:qFormat></w:qFormat></w:style><w:style w:type="paragraph" w:styleId="Heading4"><w:name w:val="Heading 4"></w:name><w:pPr></w:pPr><w:rPr><w:color w:val="2E74B5"></w:color><w:i w:val="true"></w:i></w:rPr><w:basedOn w:val="Normal"></w:basedOn><w:next w:val="Normal"></w:next><w:qFormat></w:qFormat></w:style><w:style w:type="paragraph" w:styleId="Heading5"><w:name w:val="Heading 5"></w:name><w:pPr></w:pPr><w:rPr><w:color w:val="2E74B5"></w:color></w:rPr><w:basedOn w:val="Normal"></w:basedOn><w:next w:val="Normal"></w:next><w:qFormat></w:qFormat></w:style><w:style w:type="paragraph" w:styleId="Heading6"><w:name w:val="Heading 6"></w:name><w:pPr></w:pPr><w:rPr><w:color w:val="1F4D78"></w:color></w:rPr><w:basedOn w:val="Normal"></w:basedOn><w:next w:val="Normal"></w:next><w:qFormat></w:qFormat></w:style><w:style w:type="paragraph" w:styleId="ListParagraph"><w:pPr></w:pPr><w:rPr></w:rPr><w:name w:val="List Paragraph"></w:name><w:basedOn w:val="Normal"></w:basedOn><w:qFormat></w:qFormat></w:style><w:style w:type="character" w:styleId="Hyperlink"><w:name w:val="Hyperlink"></w:name><w:rPr><w:color w:val="0563C1"></w:color><w:u w:val="single"></w:u></w:rPr><w:uiPriority w:val="99"></w:uiPriority><w:unhideWhenUsed></w:unhideWhenUsed><w:basedOn w:val="DefaultParagraphFont"></w:basedOn></w:style><w:style w:type="character" w:styleId="FootnoteReference"><w:name w:val="footnote reference"></w:name><w:basedOn w:val="DefaultParagraphFont"></w:basedOn><w:uiPriority w:val="99"></w:uiPriority><w:semiHidden></w:semiHidden><w:unhideWhenUsed></w:unhideWhenUsed><w:rPr><w:vertAlign w:val="superscript"></w:vertAlign></w:rPr></w:style><w:style w:type="paragraph" w:styleId="FootnoteText"><w:pPr><w:spacing w:after="0" w:line="240" w:lineRule="auto"></w:spacing></w:pPr><w:rPr><w:sz w:val="20"></w:sz><w:szCs w:val="20"></w:szCs></w:rPr><w:name w:val="footnote text"></w:name><w:basedOn w:val="Normal"></w:basedOn><w:link w:val="FootnoteTextChar"></w:link><w:uiPriority w:val="99"></w:uiPriority><w:semiHidden></w:semiHidden><w:unhideWhenUsed></w:unhideWhenUsed></w:style><w:style w:type="character" w:styleId="FootnoteTextChar"><w:name w:val="Footnote Text Char"></w:name><w:rPr><w:sz w:val="20"></w:sz><w:szCs w:val="20"></w:szCs></w:rPr><w:uiPriority w:val="99"></w:uiPriority><w:unhideWhenUsed></w:unhideWhenUsed><w:basedOn w:val="DefaultParagraphFont"></w:basedOn><w:link w:val="FootnoteText"></w:link><w:uiPriority w:val="99"></w:uiPriority><w:semiHidden></w:semiHidden></w:style></w:styles>
\ No newline at end of file
diff --git a/docx-core/src/lib.rs b/docx-core/src/lib.rs
index 00ede4f..9aad3cf 100644
--- a/docx-core/src/lib.rs
+++ b/docx-core/src/lib.rs
@@ -1,4 +1,24 @@
+use std::fs::File;
+use std::io::{self, Write};
 
-pub fn add_one(x: i32) -> i32 {
-    x + 1
+use xml::writer::{EmitterConfig, EventWriter, Result, XmlEvent};
+
+pub fn simple() {
+    let mut file = File::create("./dist/output.xml").unwrap();
+    let mut b = Vec::new();
+    let mut w = EmitterConfig::new()
+        .write_document_declaration(false)
+        .create_writer(&mut b);
+
+    w.write(XmlEvent::start_element("h:hello").ns("h", "urn:hello-world"))
+        .unwrap();
+    w.write("hello world").unwrap();
+    w.write(XmlEvent::end_element()).unwrap();
+
+    file.write_all(&b).unwrap();
+    file.flush().unwrap();
+    // assert_eq!(
+    //     str::from_utf8(&b).unwrap(),
+    //     r#"<h:hello xmlns:h="urn:hello-world">hello world</h:hello>"#
+    // );
 }