AZW3 to SXW Converter

Convert AZW3 to SXW OpenOffice format — free

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Kindle to OpenOffice

Convert AZW3 ebooks to SXW format — open and edit your Kindle content in OpenOffice Writer or LibreOffice Writer.

Cloud Processing

The entire conversion runs on Convertio servers — no software to install, no processing load on your own device.

Privacy First

Uploaded AZW3 files are deleted immediately after conversion, and SXW outputs are removed within 24 hours.

How to convert AZW3 to SXW

1

Select files from Computer, Google Drive, Dropbox, URL or by dragging it on the page.

2

Choose sxw or any other format you need as a result (more than 200 formats supported)

3

Let the file convert and you can download your sxw file right afterwards

About formats

AZW3, also known as Kindle Format 8 (KF8), is Amazon's advanced ebook format introduced in November 2011 alongside the first Kindle Fire tablet. It replaced the older MOBI-based AZW format with a substantially more capable layout engine built on HTML5 and CSS3 subsets, enabling fixed layouts, embedded fonts, SVG graphics, drop caps, and other typographic refinements that were impossible in earlier Kindle formats. Internally, an AZW3 file packages content in a structure derived from EPUB, wrapped in Amazon's proprietary Palm database container with optional DRM protection. The format supports both reflowable text for novels and fixed-layout pages for comics, cookbooks, and children's titles. One major advantage is rich formatting fidelity — publishers can produce visually sophisticated ebooks with complex page designs, nested tables, and precise font control that render consistently across the Kindle ecosystem. Another strength is backward compatibility: AZW3 files can bundle a MOBI fallback section so older Kindle hardware still displays the content, even without full KF8 rendering. The format integrates tightly with Amazon's Kindle platform, supporting features like X-Ray, Whispersync page tracking, and in-book dictionary lookups across millions of devices and apps worldwide.
Developer: Amazon
Initial release: November 2011
SXW is the word processing document format used by StarOffice 6.0 and OpenOffice.org 1.0, developed by Sun Microsystems and released in 2002. The format was one of the first mainstream office document formats to adopt an XML-based architecture, packaging document content, styles, metadata, and embedded media in a ZIP archive — a structural approach that directly influenced the later OpenDocument Format (ODF). The content.xml file describes the document body using XML elements for paragraphs, headings, lists, tables, footnotes, and inline formatting, while styles.xml defines the styling rules and meta.xml carries document properties. SXW represented a significant milestone in open-source office software, demonstrating that a non-proprietary XML format could handle the full range of word processing features including change tracking, indexes, cross-references, and complex page layouts. One advantage was transparency and openness — the XML structure made document content inspectable, transformable, and processable using standard tools, a sharp contrast to the opaque binary formats dominant at the time. The format's role as a technological precursor to the ODF standard is another historical significance: the OASIS OpenDocument Technical Committee used the OpenOffice.org XML format (including SXW) as the starting point for developing ODF 1.0. While SXW was superseded by ODT with OpenOffice.org 2.0 in 2005, existing SXW documents can be opened by LibreOffice, Apache OpenOffice, and document conversion tools.
Developer: Sun Microsystems
Initial release: 2002

Frequently Asked Questions

Why convert AZW3 to SXW?

SXW is the legacy OpenOffice Writer format — useful when you need to open Kindle content in older OpenOffice installations.

What applications open SXW files?

OpenOffice Writer, LibreOffice Writer, and NeoOffice all open SXW files. Modern suites treat SXW as a legacy import format.

Is SXW still relevant today?

SXW is largely replaced by ODF/ODT, but older systems and archived workflows still rely on it — Convertio supports it fully.

Does AZW3 formatting transfer to SXW?

Paragraphs, headings, bold, italics, and basic structure from the AZW3 ebook are preserved in the SXW document output.

Is this service free?

Yes — Convertio converts AZW3 to SXW at no charge. Paid plans are available for users who need more conversion capacity.