>> IIQ file

IIQ file format description

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

1 filename extension(s) found in our database.

.iiq - Phase One RAW Image

The IIQ graphic files are related to Capture One Express. The IIQ file is a Phase One RAW Image. An IIQ raw image file contains minimally processed data from the image sensor of a Phase One digital camera.

Capture One Express
Graphic files
- / -
Phase One RAW Image related extensions:
Fastgraph Bitmap Graphics Data
Atari Digi Paint Image
Oracle Visual Information Retrieval RAW Pixel Format Data
Atari ST Image
Facemaker Face Data

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

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

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

ii, liq

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

IconWorkshop Extended Information
GCC Preprocessed C++ Source Code
Liquid Tracker Song

Operating systems currently supports the following operating systems:

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

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