Convert SXW to AZW3

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SXW vs AZW3 Format Comparison

Aspect SXW (Source Format) AZW3 (Target Format)
Format Overview
SXW
StarOffice/OpenOffice.org Writer Document

SXW is a legacy word processing document format used by StarOffice and early versions of OpenOffice.org Writer. It is a ZIP archive containing XML files (content.xml, styles.xml, meta.xml) that define the document structure, formatting, and metadata. SXW was the predecessor to the modern ODT format and can still be opened by LibreOffice and OpenOffice.

Legacy Format ZIP/XML-Based
AZW3
Amazon Kindle Format 8 (KF8)

AZW3 (also known as Kindle Format 8 or KF8) is Amazon's modern ebook format for Kindle devices and applications. It supports HTML5, CSS3 styling, embedded fonts, and advanced layout features. AZW3 replaced the older MOBI/AZW format and provides a significantly richer reading experience on Kindle hardware and software.

Ebook Format Amazon Kindle
Technical Specifications
Structure: ZIP archive containing XML files (content.xml, styles.xml, meta.xml)
Developed By: Sun Microsystems (StarOffice/OpenOffice.org)
MIME Type: application/vnd.sun.xml.writer
Extension: .sxw
Based On: OpenOffice.org XML format (pre-ODF)
Structure: Binary container with HTML5/CSS3 content
Developed By: Amazon (Kindle Format 8)
MIME Type: application/vnd.amazon.ebook
DRM: Optional Amazon DRM protection
Extension: .azw3
Syntax Examples

SXW documents contain XML content within a ZIP archive:

<?xml version="1.0" encoding="UTF-8"?>
<office:document-content>
  <office:body>
    <office:text>
      <text:h text:style-name="Heading_1">
        Chapter One
      </text:h>
      <text:p text:style-name="Text_Body">
        It was a dark and stormy night.
      </text:p>
    </office:text>
  </office:body>
</office:document-content>

AZW3 internally uses HTML5 for content:

<html>
<head>
  <style>
    h1 { text-align: center; }
    p { text-indent: 1.5em; }
  </style>
</head>
<body>
  <h1>Chapter One</h1>
  <p>It was a dark and stormy night.</p>
</body>
</html>
Content Support
  • Formatted text with styles and fonts
  • Headings, paragraphs, and sections
  • Tables with merged cells and borders
  • Embedded images and OLE objects
  • Headers, footers, and page numbering
  • Lists (ordered, unordered, nested)
  • Footnotes and endnotes
  • Table of contents and indexes
  • HTML5 content with CSS3 styling
  • Embedded fonts (OpenType, TrueType)
  • Scalable vector graphics (SVG)
  • Table of contents with navigation
  • Fixed-layout and reflowable content
  • Image galleries and drop caps
  • Pop-up footnotes on Kindle
Advantages
  • Rich formatting and layout capabilities
  • Supports embedded images and objects
  • XML-based structure allows programmatic access
  • Compatible with LibreOffice and OpenOffice
  • Self-contained ZIP archive with all resources
  • Preserves complex document formatting
  • Native format for Amazon Kindle devices
  • Advanced typography and layout features
  • Supports embedded fonts and CSS3 styling
  • Optimized for e-ink reading experience
  • Supports both fixed and reflowable layouts
  • Access to Kindle ecosystem and store
Disadvantages
  • Legacy format superseded by ODT (ODF)
  • Limited support in modern applications
  • No active development or updates
  • Larger file sizes than plain text formats
  • Requires office suite software to create/edit
  • Proprietary Amazon format
  • Limited to Kindle ecosystem
  • Optional DRM restricts sharing
  • Not supported by most non-Amazon readers
  • Complex internal structure
Common Uses
  • Legacy office documents from StarOffice/OpenOffice
  • Archived business documents and reports
  • Government and institutional legacy files
  • Academic papers from early 2000s
  • Migration projects to modern formats
  • Kindle ebook publishing
  • Personal document reading on Kindle
  • Amazon Kindle Direct Publishing (KDP)
  • Digital textbooks and manuals
  • Offline reading collections
Best For
  • Opening legacy StarOffice/OpenOffice documents
  • Preserving historical document archives
  • Compatibility with older office suites
  • Documents requiring rich formatting
  • Reading on Kindle devices and apps
  • Publishing through Amazon KDP
  • Distributing ebooks to Kindle users
  • Creating professional Kindle ebooks
Version History
Introduced: 2002 with StarOffice 6.0 / OpenOffice.org 1.0
Developer: Sun Microsystems
Superseded By: ODT (ODF 1.0, 2005)
Status: Legacy format, read-only support in modern software
Introduced: 2011 with Kindle Format 8 (KF8)
Developer: Amazon
Predecessor: MOBI/AZW (Mobipocket-based)
Status: Active, primary Kindle ebook format
Software Support
Office Suites: LibreOffice, Apache OpenOffice
Converters: Pandoc (reads as ODT), unoconv
Legacy: StarOffice 6.0+, OpenOffice.org 1.x-2.x
Platforms: Windows, macOS, Linux
Readers: Kindle devices, Kindle apps (iOS, Android, PC)
Creators: Kindle Create, Calibre, KindleGen
Converters: Calibre, Pandoc, KindleGen
Publishing: Amazon Kindle Direct Publishing (KDP)

Why Convert SXW to AZW3?

Converting SXW to AZW3 allows you to transform legacy StarOffice/OpenOffice.org Writer documents into Kindle-compatible ebooks. This is ideal for republishing old documents, reports, or manuscripts as ebooks that can be read on Amazon Kindle devices and applications with an optimized reading experience.

SXW files from the early 2000s may contain valuable content such as manuscripts, technical manuals, or educational materials that deserve a wider audience. By converting to AZW3, you make this content accessible to millions of Kindle users worldwide, with features like adjustable font sizes, bookmarks, and dictionary lookup.

AZW3 (Kindle Format 8) supports modern HTML5 and CSS3, enabling rich typography and layout that does justice to the original SXW document content. The format supports embedded fonts, drop caps, text-indent, and other typographic features that enhance the reading experience on e-ink displays.

The conversion process extracts text content and structure from the SXW ZIP archive, preserves headings and chapter structure for Kindle navigation, and generates a properly formatted AZW3 file with a table of contents. This makes it easy to create professional Kindle ebooks from archived StarOffice documents.

Key Benefits of Converting SXW to AZW3:

  • Kindle Compatibility: Read legacy documents on any Kindle device or app
  • E-Ink Optimized: Content formatted for comfortable reading on e-ink screens
  • Rich Typography: HTML5/CSS3 support enables professional ebook formatting
  • Navigation: Automatic table of contents for easy chapter navigation
  • Portability: Carry entire document libraries on a single Kindle device
  • Publishing Ready: AZW3 files can be uploaded to Amazon KDP for distribution

Practical Examples

Example 1: Novel Manuscript

Input SXW file (novel.sxw):

A StarOffice Writer manuscript with chapter headings, paragraphs of prose, and a table of contents page. The document was created in OpenOffice.org 1.1 circa 2003.

Output AZW3 file (novel.azw3):

A fully formatted Kindle ebook with navigable chapter headings, reflowable text that adapts to screen size, and an interactive table of contents. Readers can adjust font size, use bookmarks, and look up words in the built-in dictionary.

Example 2: Training Manual

Input SXW file (training.sxw):

A legacy training manual created in StarOffice with numbered steps, bullet lists, and section headers describing employee onboarding procedures.

Output AZW3 file (training.azw3):

A Kindle-readable training guide with preserved section structure, numbered lists for procedures, and a navigable table of contents. The manual can be distributed to employees via Kindle apps on their phones or tablets.

Example 3: Academic Thesis

Input SXW file (thesis.sxw):

An archived university thesis written in OpenOffice.org Writer with chapters, bibliography references, and footnotes.

Output AZW3 file (thesis.azw3):

A portable Kindle ebook version of the thesis with chapter navigation, preserved footnotes as Kindle pop-up notes, and reflowable text. The thesis can be easily shared and read on any Kindle device or application.

Frequently Asked Questions (FAQ)

Q: What is the SXW file format?

A: SXW is the native document format used by StarOffice 6.0 and OpenOffice.org 1.x Writer. It is a ZIP archive containing XML files that define the document's content, styles, and metadata. SXW was the predecessor to ODT and was superseded by the ODF 1.0 standard in 2005.

Q: What Kindle devices support AZW3?

A: AZW3 (KF8) is supported by all Kindle devices released since 2011, including Kindle Paperwhite, Kindle Oasis, and Kindle Fire tablets. It is also supported by Kindle reading apps on iOS, Android, Windows, and macOS.

Q: Will images from my SXW document be included in the AZW3 file?

A: Embedded images in the SXW document are extracted and included in the AZW3 output where possible. Images are optimized for Kindle display resolution. Very large or unsupported image formats may be resized or converted during the process.

Q: Can I publish the converted AZW3 on Amazon?

A: The converted AZW3 file can be used for personal reading on Kindle devices. For publishing through Amazon Kindle Direct Publishing (KDP), Amazon typically requires EPUB or DOCX uploads, which they convert to their distribution format. However, the AZW3 conversion gives you a preview of how your content will appear on Kindle.

Q: Does the conversion preserve the table of contents?

A: Yes, the converter generates a navigable table of contents based on the heading structure in your SXW document. This enables readers to quickly jump between chapters and sections using the Kindle's built-in navigation features.

Q: How does AZW3 differ from MOBI?

A: AZW3 (KF8) is the successor to MOBI/AZW. It supports HTML5 and CSS3, enabling modern typography, embedded fonts, and advanced layouts. MOBI is limited to basic HTML4 formatting. All modern Kindle devices support AZW3, making it the preferred format.

Q: Will footnotes from my SXW document work on Kindle?

A: Footnotes from the SXW document are converted to Kindle-compatible footnotes. On supported Kindle devices, these appear as pop-up notes when tapped, providing a seamless reading experience without needing to scroll to the bottom of the page.

Q: Can I convert SXW files with complex tables to AZW3?

A: Basic tables are preserved in the AZW3 output. However, Kindle's support for complex table layouts is limited, especially on smaller e-ink screens. Very wide tables or those with merged cells may be simplified for optimal display on Kindle devices.