SXW to LRF Converter

Convert SXW to LRF — Sony Reader format from legacy docs

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Sony Reader Format

Convert your legacy SXW documents to LRF for reading on Sony Reader devices — bring old text content to a portable screen.

Cloud Conversion

All processing runs on remote servers. Upload your SXW file and download the LRF result — no local resources consumed.

Any Platform Access

Start the conversion from any device with a web browser — Windows, macOS, Linux, iOS, or Android all work perfectly.

How to convert SXW to LRF

1

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

2

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

3

Let the file convert and you can download your lrf 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 While SXW was superseded by ODT with OpenOffice.org 2.0 in 2005, existing SXW documents can be opened by LibreOffice, Apache OpenOffice, and document conversion tools.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
LRF is the file format associated with Sony's BBeB (Broadband eBook) specification, jointly developed by Sony and Canon and introduced in 2004 with the Sony Librie EBR-1000EP — the world's first commercial E Ink e-reader. The format supports both reflowable text and fixed-layout page rendering, embedding fonts, images, vector graphics, and metadata within a compact binary container. LRF files use a block-based internal structure with object trees describing page layouts, text streams, image resources, and table of contents navigation. Sony's Reader devices and the companion desktop software (Sony Reader Library) served as the primary ecosystem for LRF content throughout the mid-2000s. A key advantage was its early adoption of high-quality font embedding and text rendering optimized specifically for E Ink displays, delivering a reading experience noticeably superior to many competing formats of the era. The format also supported bookmark synchronization, dictionary lookups, and annotations within the Sony Reader ecosystem. However, Sony officially discontinued BBeB/LRF support in 2010, migrating its Reader platform to the industry-standard EPUB format. Today LRF files are primarily encountered in personal ebook collections from that period and can be converted to modern formats using tools like Calibre. The format remains a historically significant milestone as the native format of the device category that launched the modern e-reader revolution.
Developer: Sony
Initial release: 2004

Frequently Asked Questions

Why convert SXW to LRF?

LRF is the BroadBand eBook format used by Sony Readers — converting SXW lets you read legacy documents on those devices.

What devices read LRF?

Sony Reader devices and Calibre ebook manager can open LRF files. Calibre can also convert LRF to other ebook formats.

Can I use this converter on any operating system?

The tool is browser-based and works on Windows, macOS, Linux, ChromeOS, and mobile platforms — no OS-specific software needed.

Is this conversion free?

Basic SXW to LRF conversions are free on Convertio. Premium plans offer higher volume and priority processing capabilities.

Can I do this from my phone?

Yes — the converter is browser-based and works on any mobile device. Upload your SXW and get the LRF output on the go.

How long does it take?

Most SXW to LRF conversions complete in seconds. All processing happens on cloud servers without burdening your device.