CRN file format description

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

1 filename extension(s) found in our database.

.crn - Crunch Compressed Texture

The CRN development files are related to Crunch. The CRN file is a Crunch Compressed Texture. Crunch is an open source (ZLIB license) lossy texture compression library and command line compression tool for developers that distribute and use content in the DXT1/5/N or 3DC/BC5 compressed mipmapped GPU texture formats.

Development files
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Crunch Compressed Texture related extensions:
Crunched LBR Archive

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

Can't open a .crn 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 .crn file extension is often given incorrectly!

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

cdn, cen, cfn, cgn, cn, cnr, cr, crb, crg, crh, crm, ctn, drn, frn, rcn

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

Unknown FRN File
CEN EN 13032 Photometric Data
PoldatDB Data
Links 386 Pro Game Data
CRiSP Macro File
GenePattern Copy Number Data

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

If you find the information on this page useful, please feel free to link to this page.

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