CIFF file format description

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

1 filename extension(s) found in our database.

.crw - Canon Raw Image

The CRW graphic files are related to Microsoft RAW Image Thumbnailer and Viewer. The CRW fle is a Canon RAW image data. A raw image file contains minimally processed data from the image sensor of a Canon digital camera.

Microsoft RAW Image Thumbnailer and Viewer
Graphic files
- / -
Canon Raw Image related extensions:
Eclipse Image
Gatan DigitalMicrograph 3 Image
Thumbs Plus Viewer Graphics Data
Atari 8-bit Hard Interlace Picture
Kodak Proprietary Decimated TIFF
Hald CLUT Image

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

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

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

cff, cidf, cif, coff, diff, fiff, iff, siff, viff

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

Ultraviolet Common File Format
Roxio Easy CD Creator Image
Docuware Content Folder File
Common Object File Format Image
ColorImpact File
BoomTracker 4.0 Song

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 .ciff file format, then write to us! >> CIFF file