BRK file format description

Many people share .brk files without attaching instructions on how to use it. Yet it isn’t evident for everyone which program a .brk file can be edited, converted or printed with. On this page, we try to provide assistance for handling .brk files.

2 filename extension(s) found in our database.

.brt - Brooktrout 301 Fax Image

The BRT graphic files are related to Dialogic Brooktrout Fax Software. The BRT file is a Brooktrout 301 Fax Image. Brooktrout is an intelligent fax board that offers both TDM- and IP-based fax capabilities.

Dialogic Brooktrout Fax Software
Graphic files
- / -
301, brk
Brooktrout 301 Fax Image related extensions:
PackJPG Compressed JPEG Image
Hires Manager Bitmap Image
Nokia Group Graphic
MSX2 Screen 8 Bitmap
ZX Spectrum Icon
Atari 8-bit XL-Paint MAX Image

.pdb - Protein Data Bank

The PDB data files are related to wvPDB. The PDB file is a Protein Data Bank. The Protein Data Bank file format is a textual file format describing the three-dimensional structures of molecules held in the Protein Data Bank.

Data files
- / -
brk, ent
Protein Data Bank related extensions:
Protein Data Bank

Naturally, other applications may also use the .brk file extension. Even harmful programs can create .brk files. Be especially cautious with .brk files coming from an unknown source!

Can't open a .brk file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:

Windows can't open this file:


To open this file, Windows needs to know what program you want to use to open it. Windows can go online to look it up automatically, or you can manually select one from a list of programs that are installed on your computer.

To avoid this error, you need to set the file association correctly.

The .brk file extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

bdk, bek, bk, bkr, br, brl, brm, bro, bru, btk, frk, grk, rbk, rk, vrk

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

OS/2 Floppy Disk Image
BitLocker Encryption Key
Advance Design Results Backup
BK ReplaceEm Fileset
Shanda Bambook BEK eBook
Bryce Plug-in

Operating systems currently supports the following operating systems:

Windows XP/Vista, Windows 7/8/10, Windows 11, CentOS, Debian GNU/Linux, Ubuntu Linux, FreeBSD, macOS, Mac OS X, iOS, Android

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If you have useful information about the .brk file format, then write to us! >> BRK file