File extension IIF (.IIF) information

Windows cannot open IIF files?

If Windows is unable to open file extension .IIF you may have registry related errors or may not have the appropriate program installed. We strongly recommend that you run a free registry scan.

Appropriate program:

The .IIF file extension identifies a data format used by QuickBooks (an accounting software application) to store financial data in a text-based document. To access .IIF you can either use a text editor or install Intuit's QuickBooks software.. Incorrect associations are the cause of many file extension errors. Scan your system to prevent, identify and repair IIF file extension association errors.


  • Performance: To optimize memory and CPU usage for IIF files run a free performance scan.
  • Stability: Fix IIF errors to make your system and applications more stable.
  • Drivers: Scan your PC for the outdated drivers which lead to system errors and slowdowns.

You are currently viewing the detail page for ABF file extension. This page contains a detailed description of the ABF file type, software tools to help resolve file association errors in the Windows registry together with relevant system utility applications and other related information.