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.iff

File Type Interchange File Format IconInterchange File Format
File Format Standard (developed by Electronic Arts)
Usage Open manually
Popularity ★ ★ ★ ★ ☆  Common
Description

Universal file format developed by Electronic Arts; may contain text, image, or audio data; used as the basis for several other file formats and is supported by many programs.

IFF files are made up of sections of data called "chunks" that are defined with four-letter IDs; the three main chunk types are FORM, LIST, and CAT; FORM specifies the format of the file, LIST includes the properties of the file, at CAT includes the rest of the data; each chunk may contain text, numerical data, or raw data.

IFF files used by The Sims and The Sims Online can be edited using IFF Pencil for Windows or IFF Snooper for the Mac.

Open With
Windows

IconAdobe Audition

IconCorel PaintShop Pro

IconACD Systems Canvas

macOS

IconAdobe Audition

IconApple QuickTime Player

IconShedWorx Smart Converter

Unix

IconCloanto Amiga Forever

IconXnViewMP

Published July 16, 2008
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Information from the PC File Extensions Reference
https://pc.net/extensions/iff
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