SXW to DOCX Converter

Upgrade SXW to modern DOCX — free online converter

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Modern Format Upgrade

Move from the obsolete SXW format to DOCX — the universal standard supported by every major word processor today.

Batch Conversion Ready

Upload multiple SXW files and convert them all to DOCX at once. Process an entire archive of legacy documents in one session.

Your Files Stay Private

Uploaded SXW documents are deleted right after processing, and converted DOCX files are purged within 24 hours.

How to convert SXW to DOCX

1

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

2

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

3

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

About formats

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 While SXW was superseded by ODT with OpenOffice.org 2.0 in 2005, existing SXW documents can be opened by LibreOffice, Apache OpenOffice, and document conversion tools.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
DOCX is the default document format for Microsoft Word since Office 2007, based on the Office Open XML (OOXML) standard published as ECMA-376 and adopted as ISO/IEC 29500. A DOCX file is a ZIP archive containing XML documents that describe the document body (document.xml), styles, themes, headers, footers, footnotes, comments, numbering definitions, and relationships between parts. Media assets like images and embedded objects reside in dedicated directories within the package. The XML structure means document content is human-inspectable and programmable — developers can create, modify, and extract content from DOCX files using standard XML libraries in any programming language without requiring Word. One significant advantage is openness and interoperability: the published specification enables any software to implement DOCX support, and the format is read and written by LibreOffice, Google Docs, Apple Pages, and dozens of other tools across all platforms. Built-in ZIP compression is another practical strength — DOCX files are substantially smaller than equivalent DOC files, and the modular XML structure improves crash recovery since corruption in one part does not necessarily destroy the entire document. The format supports all modern Word capabilities including SmartArt, content controls, bibliography management, accessibility metadata, and real-time co-authoring. DOCX has become the universal standard for document interchange in business, education, and government.
Developer: Microsoft
Initial release: January 30, 2007

Frequently Asked Questions

Why convert SXW to DOCX?

DOCX is the current standard for word processing — converting old SXW files ensures they remain editable in modern applications.

What opens DOCX files?

Microsoft Word, LibreOffice Writer, Google Docs, Apple Pages, WPS Office, and OnlyOffice all handle DOCX documents natively.

Is the formatting preserved?

Paragraphs, fonts, tables, and images transfer reliably. Complex StarOffice-specific elements may need minor manual cleanup.

Can I do this on my phone?

Yes — Convertio works in any mobile browser. Upload the SXW and download the DOCX directly on your smartphone or tablet.

Is SXW to DOCX conversion free?

Standard conversions are free. Larger batches and priority processing are available through premium plans on Convertio.

How long does conversion take?

Typically just a few seconds. Processing happens on servers, so your device performance is not affected at all.

SXW to DOCX Quality Rating

4.6 (357 votes)
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