What is IFF? What Opens a IFF? File Format List from WhatIs.com

File Extension

IFF File Format

Interchange file (Quickbooks for Windows)

IIF is a data file format used by Quickbooks for Windows. IIF stands for Intuit Interchange Format, and these files are used to export financial data. IIF files contain text-base, tab-delimited format similar to .TSV files. IIF files can be opened and read by most spreadsheet programs, such as Microsoft Access.

MIME: application/qbooks, application/qbookspro, text/iif

Learn more about .IIF files:

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This was last updated in August 2010
Editorial Director Margaret Rouse

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