STAROFFICE Document to LRF conversion is the process of transforming a STAROFFICE (.sxw) word-processing file — an XML-based document format used by older StarOffice/OpenOffice suites — into an LRF (Broadband eBook) file, a Sony proprietary eBook container used by older Sony Readers. This conversion extracts text and images from the SXW package, maps document structure (headings, paragraphs, images) to eBook-friendly XHTML/OPF constructs, and repackages content into the LRF format for reading on compatible devices.
Related guides
Practical guides to help you choose formats, preserve quality, and avoid common conversion problems.
Getting EPUB files onto your Kindle used to require mandatory conversion, but Amazon has gradually added native EPUB support through Send to Kindle. This guide covers every method for reading any eBook on your Kindle, from one-click email transfers to advanced Calibre workflows, plus metadata preservation, DRM considerations, and format selection between MOBI, AZW3, and KFX.
Read guide →A comprehensive guide to EPUB, MOBI, AZW, and PDF eBook formats. Compare features, device compatibility, DRM, file sizes, and learn which format is best for your reading device in 2026.
Read guide →Drag your .SXW file from your computer or use the browse function.
Confirm .lrf as the selected destination format.
Click "Convert" and download your converted .LRF file once ready.
The MIME type for SXW files is application/vnd.sun.xml.writer, typically used for text documents in office applications. LRF files use the MIME type application/octet-stream and are commonly associated with Sony eBook readers. LRF employs proprietary compression and formatting codecs designed for fast rendering and navigation on e-ink devices.
The LRF (.LRF) format is commonly used for ebook. Understanding its characteristics can be helpful when converting to or from other formats like STAROFFICE Document.
While specific technical details aren't available here, LRF files generally serve the purpose of storing ebook effectively within their domain.
Easily convert your STAROFFICE Document (SXW) files to LRF format with our fast and reliable online SXW to LRF converter. No software installation required, just upload your file and get your converted document instantly.
STAROFFICE Document (SXW) files are primarily editable text documents created with office suites, designed for content creation and editing. LRF format is a proprietary eBook format optimized for efficient storage and display on Sony e-readers. While SXW focuses on document editing, LRF targets enhanced reading experiences on portable devices.
Keep individual SXW files under 50–100MB for fastest, most reliable conversions; very large embedded images inflate the package and slow processing.
To preserve layout and formatting, export complex documents from your StarOffice/OpenOffice to .odt first, then convert; avoid unsupported features like advanced macros and forms.
For images, choose a ‘high’ quality preset if text readability is critical (e.g., scanned pages); use ‘medium’ compression for ebooks targeting limited-storage readers.
Use batch conversion tools or scripts when converting many files; test one representative document to confirm styles and metadata before full batch runs.
The SXW to LRF converter saved me hours by quickly preparing my documents for my Sony reader.
Emily R.
Content Writer
Reliable and easy to use, this online tool is my go-to for converting STAROFFICE files.
Mark D.
IT Specialist
I love how simple it is to make my lesson plans compatible with different e-reading devices.
Anna S.
Teacher
Start your free SXW to LRF conversion now.
Drag your file here to to upload.
Up to 250MB
Limitations: LRF does not support advanced StarOffice-only features (complex macros, active content, some proprietary styles); fonts may need embedding or substitution on the reader device.