Convert StarOffice Writer documents (SXW) to DOCX online for free
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Our advanced conversion technology delivers accurate SXW conversions while preserving quality and integrity of your documents.
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Upload your SXW file to preview it in your browser and download it as a DOCX. No registration, watermarks, or software installation required.
SXW to DOCX Conversion Explained
Converting .SXW to .DOCX moves a document from the obsolete StarOffice/OpenOffice 1.x format to the modern Microsoft Word Open XML standard. People perform this conversion to rescue legacy documents and make them editable on modern devices. You gain immediate compatibility with current word processors, cloud storage, and mobile apps. However, you lose legacy macros, specific StarOffice OLE objects, and exact pagination. The main trade-off is sacrificing historical file preservation for modern usability. If you only need to read or print the file and want to guarantee the layout remains identical, converting to .PDF is a better choice.
Typical Tasks and Users
Archivists: Recovering digital records, contracts, or manuscripts created in the early 2000s.
Legal and Government Workers: Migrating old case files from legacy open-source systems to modern Microsoft 365 environments.
Researchers: Accessing old academic papers or data reports originally written in OpenOffice.org 1.0.
Software & Tool Support
LibreOffice: The most reliable free, open-source tool for this task. It natively opens .SXW and exports to .DOCX. It also supports bulk conversion via the command line (soffice --headless --convert-to docx file.sxw).
Apache OpenOffice: Opens .SXW natively, but its .DOCX export filters are older and generally less accurate than LibreOffice.
Microsoft Word: Cannot open .SXW natively. It requires a third-party plugin or prior conversion to a supported format like .ODT or .DOCX.
Pandoc: A powerful document converter, but it cannot read .SXW directly. You must convert the file to .ODT first before using Pandoc to generate a .DOCX.
Pros and Cons of the Conversion
Pros:
Universal Compatibility:.DOCX opens natively on Windows, macOS, iOS, and Android.
Cloud Integration:.DOCX files upload seamlessly to Google Docs, Microsoft OneDrive, and other collaborative platforms.
Future-Proofing:.SXW is a dead format. .DOCX is an actively maintained ISO standard.
Cons:
Layout Shifts: Margins, tab stops, and line spacing often change during the translation between different XML schemas.
Macro Loss: Legacy StarBasic macros do not convert to Microsoft VBA. They will be stripped or broken.
Equation Errors: StarMath formulas often convert to uneditable static images or break entirely.
Conversion Difficulties & Why Convert.Guru
The real technical problem in converting .SXW to .DOCX is the age of the source format. .SXW uses an early, pre-standardized XML schema. The conversion pipeline usually requires mapping this legacy XML to the OpenDocument Format (.ODT) internally, and then translating that structure into Office Open XML (.DOCX). During this mapping, legacy font encodings and deprecated formatting rules often fail. If the target system lacks the original fonts used 20 years ago, the text will reflow, altering the document's page count.
Convert.Guru is a strong choice for this task because it handles the legacy XML parsing and modern OOXML generation in a single, automated pipeline. It applies intelligent fallback fonts and maps legacy styles to modern Word equivalents without requiring you to install and configure legacy software like OpenOffice.
SXW vs. DOCX: What is the better choice?
Feature
.SXW
.DOCX
Standard
Pre-ODF XML (Obsolete)
ISO/IEC 29500 (Modern)
Native Application
StarOffice 6 / OpenOffice 1.x
Microsoft Word
Cloud Editing
No
Yes
Macro Language
StarBasic
VBA
File Structure
ZIP archive of XML
ZIP archive of XML
Which format should you choose?
Choose .SXW only if you are maintaining an isolated legacy system running StarOffice or early OpenOffice, or if you are storing the original file strictly for digital forensics and historical preservation.
Choose .DOCX for all active editing, sharing, and modern storage.
Avoid this conversion and choose .PDF instead if the document contains complex layouts, charts, or equations, and your only goal is to read or print the file exactly as it originally appeared.
Conclusion
Converting .SXW to .DOCX is a necessary step for rescuing old documents from obsolete software and bringing them into modern workflows. The biggest limitation to watch for is the inevitable shift in layout and the complete loss of legacy macros. Convert.Guru provides a fast, secure, and technically accurate bridge between this 20-year-old format and modern word processors, making the transition simple and reliable.
FAQ
Convert.Guru also easily converts SXW documents (Legacy Word Processing Document) to various formats - free and online. No Word or extra software needed.
Convert the SXW locally and export to DOCX using Word software or a reliable desktop converter — no internet needed. The easiest way is to open the SXW file in the software on your computer and then save it as a DOCX file in the File menu under Save as...
About the SXW to DOCX Converter
Convert.Guru makes it fast and easy to convert StarOffice Writer documents to DOCX online. The SXW to DOCX converter runs entirely in your browser, so there’s no software to install and no account required. Powered by one of the industry’s largest and most trusted file format databases—maintained for more than 25 years—our technology reliably identifies SXW documents even when they are damaged or incorrectly named. Uploaded files are automatically deleted after conversion to protect your privacy.