RB to OXPS Converter

Free RB to OXPS conversion — open XML paper output

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Legacy to Open XML Paper

Move RB ebook content into OXPS — the ECMA-standard open fixed-layout document format with faithful page rendering.

Server-Side Heavy Lifting

All RB to OXPS processing happens on Convertio servers. Your device stays fast while conversion runs remotely.

Files Auto-Erased

RB uploads are deleted post-conversion. OXPS output is purged from Convertio servers automatically within 24 hours.

How to convert RB to OXPS

1

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

2

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

3

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

About formats

RB is the native ebook format of the Rocket eBook, one of the first commercially available dedicated e-reading devices, developed by NuvoMedia and released in October 1998. Founded by Martin Eberhard and Marc Tarpenning — who later co-founded Tesla Motors — NuvoMedia designed the Rocket eBook as a handheld device with a reflective LCD screen, capable of storing approximately ten books in its internal memory. The RB format packages HTML-based content along with embedded images, metadata, and a table of contents into a single binary container optimized for the device's limited hardware. Content was purchased and downloaded through NuvoMedia's RocketLibrarian desktop software. A notable advantage of the format was its early support for bookmarking, annotation, dictionary lookups, and adjustable font sizing — features now standard on modern e-readers but revolutionary in the late 1990s. The Rocket eBook demonstrated viable commercial demand for dedicated reading devices, paving the way for subsequent platforms from Sony, Amazon, and others. NuvoMedia was acquired by Gemstar-TV Guide International in 2000, which discontinued the device line in 2003. While RB files are largely a historical curiosity today, they can be converted to modern formats using ebook management tools, and the format remains significant as a pioneering chapter in the evolution of digital reading.
Developer: NuvoMedia
Initial release: 1998
OXPS (Open XPS) is a fixed-layout document format standardized as ECMA-388 in June 2009, representing an evolution of Microsoft's original XPS specification. The format packages fixed-layout pages, fonts, images, and metadata in a ZIP-based Open Packaging Conventions container — the same packaging framework used by DOCX, XLSX, and other Office Open XML formats. Each page is described using an XML markup language that specifies paths, glyphs, images, and canvas elements with precise coordinates, producing documents that render identically regardless of the viewing device or printer. OXPS incorporated several changes from the original XPS: the use of JPEG XR for high dynamic range images, support for the Open Packaging Conventions 2nd edition, and alignment with the Ecma standardization process. Windows 8 and later generate OXPS (rather than XPS) when printing to the Microsoft XPS Document Writer. One advantage is standards-based document fidelity — as an Ecma standard, OXPS provides a vendor-neutral, fully specified format for documents that must look identical everywhere they are rendered, essential for legal filings, regulatory submissions, and archival records. The fixed-layout model is another strength: unlike reflowable formats, OXPS documents preserve exact page composition including precise glyph positioning and vector graphics. Built-in support in Windows and the .NET framework provides native viewing and creation capabilities without third-party software.
Developer: Ecma International
Initial release: June 2009

Frequently Asked Questions

Why convert RB to OXPS?

RB is an obsolete 1998 format. OXPS creates open XML-based fixed-layout documents — the modern successor to the XPS format.

What opens OXPS files?

Windows 8+ XPS Viewer, Microsoft Edge, and Okular can display OXPS documents. Sumatra PDF also provides OXPS reading support.

What is OXPS exactly?

OXPS is the ECMA-standardized version of Microsoft's XPS format. It uses Open Packaging Conventions for document structure.

Is this service reliable?

Convertio handles millions of conversions. The RB to OXPS process runs on robust cloud infrastructure with consistent results.

Does it cost anything?

No — free on Convertio. Premium accounts add batch processing and expanded file size limits for demanding workflows.