Files with lrf suffix can be often found as digital publications in BBeB (Broad Band eBook) ebook format from Sony. Discontinued few years ago.

There are 3 other file types using
the LRF file extension!

empty icon.lrf - League of Legends saved replay

empty icon.lrf - Microsoft C/C++ linker response data

empty icon.lrf - Line Rider 2 Unbound custom font

Detailed description

Software that open lrf file

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LRF file extension - BBeB ebook

What is lrf file? How to open lrf files?

File type specification:

E-book file type icon E-book file type

File extension lrf is also related to the BBeB (Broad Band eBook), a proprietary eBook file format developed and used by both Sony and Canon. Used mainly in older Sony e-book readers, such as Sony Libre.

A BBeb .lrf file contains the actual ebook, it is the default ebook format of numerous Sony reader devices including:

  • Sony PRS-300 - 5" Screen Device
  • Sony PRS-350 - 5" Screen Device
  • Sony PRS-500 - 6" Screen Device
  • Sony PRS-505 - 6" Screen Device
  • Sony PRS-600 - 6" Screen Device
  • Sony PRS-650 - 6" Screen Device
  • Sony PRS-700 - 6" Screen Device
  • Sony PRS-900 - 7" Screen Device
  • Sony PRS-950 - 7" Screen Device
  • Sony Librie - Device

Broad Band eBook formats also use the lrs and lrx file extension.

In July 2010 Sony dropped the use of BBeB formats in favour of EPUB format.

The default software associated to open lrf file:

Calibre icon

Calibre  Microsoft Windows software

Company or developer:
Kovid Goyal

A very popular, open source digital publication library management program for Microsoft Windows developed by e-book users for e-book users. It supports many common, and few uncommon e-book formats, like azw, cbc, cbr, cbz, epub, htmlz, lit etc.

Related articles:

Convert ebooks for free

Help how to open:

Older Sony readers are able to open .lrf ebooks. Calibre supports LRF format as well.

How to convert:

Several ebook converters including Calibre should be able to convert .lrf ebooks just fine.

Find conversions from lrf file:

lrf to avi

lrf to epub

lrf to mobi

lrf to mp4

lrf to pdf

lrf to snb

lrf to wmv

Find converter to lrf file type:

epub to lrf

fb2 to lrf

File identification strings:

HEX code: 4C 00 52 00 46 00
ASCII code: L R F

List of software applications associated to the .lrf file extension

Recommended software programs are sorted by OS platform (Windows, macOS, Linux, iOS, Android etc.)
and possible program actions that can be done with the file: like open lrf file, edit lrf file, convert lrf file, view lrf file, play lrf file etc. (if exist software for corresponding action in's database).

Click on the tab below to simply browse between the application actions, to quickly get a list of recommended software, which is able to perform the specified software action, such as opening, editing or converting lrf files.

lrf file viewer - programs that view lrf file - BBeB ebook

Programs supporting the exension lrf on the main platforms Windows, Mac, Linux or mobile. Click on the link to get more information about listed programs for view lrf file action.

Microsoft Windows:

Apple macOS / Mac OS X:


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file extension LRS


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