CRAM file format description

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

1 filename extension(s) found in our database.

.cram - CRAM Data

The CRAM data files are related to JBrowse. The CRAM file is a CRAM Data. CRAM is a compressed columnar file format for storing biological sequences aligned to a reference sequence.

Data files
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CRAM Data related extensions:
Generic Feature Format v3 Data

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

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

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

cam, crm, fram, ram

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

FastCAM Data
CircuitCAM Design
Casio QV-10 Digital Camera Image
Adobe FrameMaker Interchange Format Data
MSN Messenger Webcam Recording Data
Oddworld: Abes Oddysee Background 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

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