Opening an IFF File

The IFF file type is primarily associated with AmigaOS.

IFF	File extension: IFF
	File type:	container file

What is an IFF file?

IFF files mostly belong to AmigaOS. Interchange File Format (IFF) files store data in a structured, chunk-based way.
They work as a container for different types of information. Some common uses are:

Amiga OS Data: The Amiga system uses IFF files for multimedia tasks. Visit the Amiga OS website for details.

Sports Game Data: Titles like NBA 2K22 and EA Sports NBA Live 2003 use IFF files to hold game data. Some of these files use ZIP compression. More information is available on the NBA 2K22 page.

Simulation Game Files: The Sims and The Sims 2 store game data in IFF files. Refer to The Sims webpage for further info.

How They Work:
Each IFF file divides its content into chunks. Every chunk has a header and a body, which separates data clearly. This method helps add or modify parts of the file without reworking the whole file.
FilExt.com note: For viewing or editing an IFF file, use the software or tools provided by the system or game. Sometimes an archive tool that handles ZIP compression is needed if the file is compressed.

How to open an IFF file

You need a suitable software like AmigaOS to open an IFF file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your IFF file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a IFF file directly in the browser:. Just drag the file onto this browser window and drop it.

Online IFF File Viewer

Choose your .iff file to view this image

or drag and drop it here

Online File Viewer

✈

Read our privacy guarantee in Filext’s terms and privacy policy

Please allow ads on our site

This helps us keep our servers running. Then re-upload your file to view it.

Click here to see how to disable the ad blocker for filext.com

How do you convert IFF files to JPG, PDF, HTML, DOC, ...

You can convert IFF files using our online IFF file viewer (powered by Convert.Guru):

To do so, click the "Choose your .iff file to view this image" button above.
Your IFF file will then be displayed in the browser.
Now click on "Save as..." at the top of the page.
Then click the file format (e.g. PDF, JPG, DOCX, TXT, ...) you want.
Download the converted file.

Programs that open and convert IFF files:

AmigaOS
See the previous paragraphs to learn more about the main application. IFF files are often referred to as AmigaOS data files because this type of file is primarily created or used by this software.
Amiga (Sound) by Amiga
Amiga IFF/8SVX Interchange File Format The identifying characters used for this association are - Hex: 46 4F 52 4D 00, ASCII: FORM . This file format is classified as Audio. Related links: Amiga Forever
Amiga (Bitmap Graphic) by Amiga
Amiga IFF/8SVX Interchange File Format The Mime types used with this association are: application/iff, application/x-iff, image/iff, image/x-iff. The identifying characters used for this association are - Hex: 46 4F 52 4D 00, ASCII: FORM . This file format is classified as Graphic. Related links: Amiga Forever, XnView
Deluxe Paint (Image) by Electronic Arts, Inc.
DESR VFF Greyscale Bitmap Image
Maya
The identifying characters used for this association are - Hex: 46 4F 52 34, ASCII: FOR4. This file format is classified as Graphic.
Philips CDI File
ProWrite Document
Simple Musical Score
Sun TAAC Image File
Sun TAAC Image File Format : SDSC Image Tool Related links: XnView
TDI Explore & Alias Wavefront Image
TextCraft Document
The Sims (Object/Data File) by Electronic Arts (Maxis)
The identifying characters used for this association are - Hex: 49 46 46 20 46 49 4C 45 20 32 2E 35 3A 54 59 50 45 20 46 4F 4C 4C 4F 57 45 44 20 42 59 20 53 49 5A 45, ASCII: IFF.FILE.2.5:TYPE.FOLLOWED.BY.SIZE.

IFF format details:

To view or edit IFF files you need to know the file format, because it determines how the data in this file is stored. The initial characters of a file are called signature, sometimes also referred to as "magic bytes". The signature can be used to infer the file format. File extension, signature and file format must match; otherwise errors will occur when the file is opened. So you need a detailed analysis of a file to find out the format and the associated program. Below is our analysis of the IFF files:

An IFF file is used by a few programs, each with its own file format. The following file formats are most commonly found in IFF files:

55% of all IFF files are associated with Maya IFF bitmap. They consist of illegible, cryptic characters. The files are 7 KB to 580 KB in size, with a median of 25 KB. The file type was used 20 years ago but is still in use today. The keywords FORM, CMAP, ILBMBMHD, BODY and CAMG are typical for these files. Such files sometimes refer to frontend, jwst, frut, grab, imjg, logo, spli and 3D model.
15% of all IFF files have the same signature 94 EF 3B FF. The content consists of illegible binary data, which can only be read and interpreted by the associated programs. The files are on average 1 MB in size and range from 2 KB to 17 MB. Examples of file names are tunedata.iff. These files are often associated with shoe.

All the rest of the IFF files (30%) have different formats, often e.g. "The Sims" object and ZIP. Often described as face, roster, user, newscorebug, generate or global. You can get all the details of your IFF file by dragging it onto this page or by clicking the button "Choose your .iff file to view this image" above.

Technical Data for IFF File Extension

File classification:

Data

Identifier:

Hex: 46 4F 52 34, ASCII: FOR4 (provided by TrID database)

Related files:

aiff, riff, ilbm, 8svx, anim, iif, lbm, virtualmemory, 140, raw, zip, lff, win, pic, jpg, dat, spr, rar, vcex, bundle, ma, mb, skl

Mime type:

application/x-iff, image/x-ilbm, image/x-vff

The following listing is compiled from the database produced by the 'Associate This!' program, selected data from the main FILExt database and file extension information submitted by users.

ProgramID: ACDC_IFF, FileType: ACDSee IFF Image, AppName: ACDSee 32 for Windows 95/NT

ProgramID: ACDSee.iff, FileType: ACDSee IFF Image, AppName: ACDSee

ProgramID: ACDSee.IFF, FileType: ACDSee IFF Image, AppName: ACDSee for Windows 95/98/2000/NT

ProgramID: ACDSee6.iff, FileType: ACDSee6 IFF Image, AppName: ACDSee 6.0 Application
EXEFile: ACDSee6.exe

ProgramID: ACDSee6.iff, FileType: ACDSee6 IFF Image, AppName: ACDSee Application

ProgramID: Amiga.8SVX.file, FileType: Amiga audio file, AppName: Cool Edit Pro

ProgramID: FotoCanvas2.IFF, FileType: FotoCanvas IFF Image, AppName: FotoCanvas2
EXEFile: FotoCanvas2.exe

ProgramID: GraphicsConverterPro.iff, FileType: Sun TAAC file format, AppName: GraphicsConverter-reg
EXEFile: GraphicsConverter.exe

ProgramID: ICPlus, AppName: ImageEditor Plus
EXEFile: ICPlus.exe

ProgramID: iPE.Image

ProgramID: IrfanView.iff, FileType: IrfanView IFF File, AppName: IrfanView

ProgramID: PaintShopPro8.Image, FileType: Paint Shop Pro Image, AppName: Paint Shop Pro 8
EXEFile: Paint Shop Pro.exe

ProgramID: PEX7.Image, AppName: Ulead Photo Explorer
EXEFile: PEX.EXE

ProgramID: PI3.Image, FileType: Ulead PhotoImpact Image, AppName: PhotoImpact
EXEFile: Iedit.exe

ProgramID: PSP.Image, FileType: Paint Shop Pro Image, AppName: Paint Shop Pro Windows 32 bit Executable

ProgramID: PSP5.Image, FileType: Paint Shop Pro 5 Image, AppName: Paint Shop Pro 5 Release Executable
EXEFile: PSP.EXE

ProgramID: PSP7.Image, FileType: Paint Shop Pro 7 Image, AppName: Paint Shop Pro 7
EXEFile: psp.exe

ProgramID: PV1.Image, AppName: Ulead Instant Viewer

ProgramID: SlowView IFF, AppName: SlowView
EXEFile: SlowView.exe

ProgramID: SmartSaver.Image

ProgramID: Winamp.File, FileType: Winamp media file, AppName: Winamp
EXEFile: winamp.exe

ProgramID: ACDC_IFF
EXEFile: %ProgramFiles%\ACDSee32\ACDSee32.exe /v

ProgramID: ACDC_TIFF
EXEFile: %ProgramFiles%\ACDSee32\ACDSee32.exe /v

ProgramID: ACDSee 6.0.iff
EXEFile: %ProgramFiles%\ACD Systems\ACDSee\6.0\ACDSee6.exe %1

ProgramID: ACDSee 7.0.iff
EXEFile: %ProgramFiles%\ACD Systems\ACDSee\7.0\ACDSee7.exe %1

ProgramID: ACDSee.iff
EXEFile: %ProgramFiles%\ACD Systems\ACDSee\5.0\ACDSee5.exe %1

ProgramID: ACDSee.IFF
EXEFile: %ProgramFiles%\ACD Systems\ACDSee\ACDSee.exe /dde

ProgramID: ACDSee.IFF
EXEFile: %ProgramFiles%\ACD\ACDSee\ACDSee.exe /dde

ProgramID: ACDSee.IFF
EXEFile: %ProgramFiles%\ACDSYS~1\ACDSee\ACDSee.exe /dde

ProgramID: ACDSee.IFF
EXEFile: %ProgramFiles%\HEWLET~1\PHOTOS~1\ACDSys\ACD\ACDSee\ACDSee.exe /dde

ProgramID: ACDSee6.iff
EXEFile: %ProgramFiles%\ACD Systems\ACDSee\6.0\ACDSee6.exe %1

ProgramID: AIFFFile
EXEFile: %ProgramFiles%\Windows Media Player\wmplayer.exe /Open %L

ProgramID: Amiga.8SVX.file
EXEFile: %ProgramFiles%\coolpro2\coolpro2.exe %1

ProgramID: CompuPic tiff
EXEFile: %ProgramFiles%\CompuPic\compupic.exe %1

ProgramID: FView.tiff
EXEFile: %ProgramFiles%\FreshDevices\FreshView\fview.exe %1

ProgramID: iTunes.aiff
EXEFile: %ProgramFiles%\iTunes\iTunes.exe /open %L

ProgramID: MSPaper.Document
EXEFile: %ProgramFiles%\Common Files\Microsoft Shared\MODI\11.0\MSPVIEW.EXE %1

ProgramID: MSPaper.Document
EXEFile: %ProgramFiles%\COMMON~1\MICROS~1\MSPaper\MSPVIEW.EXE %1

ProgramID: NeroPhotoSnapViewer.Files
EXEFile: %ProgramFiles%\Ahead\Nero PhotoSnap\PhotoSnapViewer.exe %1

ProgramID: NeroPhotoSnapViewer.Files.iff
EXEFile: %ProgramFiles%\Ahead\Nero PhotoSnap\PhotoSnapViewer.exe %1

ProgramID: OIStiffile
EXEFile: %ProgramFiles%\MICROS~2\OFFICE11\ois.exe /shellOpen %1

ProgramID: PaintShopPro
EXEFile: C:\PSP\PSP.EXE %1

ProgramID: PaintShopPro8.Image
EXEFile: %ProgramFiles%\Jasc Software Inc\Paint Shop Pro 8\Paint Shop Pro.exe /dde

ProgramID: PEX7.Image
EXEFile: %ProgramFiles%\Ulead Systems\Ulead Photo Explorer 7.0\Pex.exe %1

ProgramID: Photoshop.IFFFile
EXEFile: %ProgramFiles%\Adobe\Photoshop 5.5\Photoshp.exe %1

ProgramID: PSP.Image
EXEFile: %ProgramFiles%\PAINTS~1\PSP.EXE /dde

ProgramID: PSP5.Image
EXEFile: %ProgramFiles%\PAINTS~1\Psp.exe /dde

ProgramID: PSP5.Image
EXEFile: F:\PAINT~14\Psp.exe /dde

ProgramID: PSP7.Image
EXEFile: %ProgramFiles%\Jasc Software Inc\Paint Shop Pro 7\psp.exe /dde

ProgramID: PSP7.Image
EXEFile: %ProgramFiles%\Paint Shop Pro 7\psp.exe /dde

ProgramID: PV1.Image
EXEFile: %ProgramFiles%\Ulead Systems\Ulead Photo Explorer 7.0\eViewer.exe %1

ProgramID: PV8.Image
EXEFile: %ProgramFiles%\Ulead Systems\Ulead Photo Explorer 8.0

ProgramID: QuickTime.aiff
EXEFile: %ProgramFiles%\QUICKT~1\QuickTimePlayer.exe %1

ProgramID: RealPlayer.AIFF.6
EXEFile: %ProgramFiles%\Real\RealOne Player\RealPlay.exe %1

ProgramID: RealPlayer.AIFF.6
EXEFile: %ProgramFiles%\Real\RealPlayer\RealPlay.exe %1

ProgramID: TIFImage.Document
EXEFile: rundll32.exe %SystemRoot%\system32\shimgvw.dll,ImageView_Fullscreen %1

ProgramID: Winamp.File
EXEFile: %ProgramFiles%\Winamp\Winamp.exe %1

ProgramID: XnView.iff
EXEFile: %ProgramFiles%\XnView\xnview.exe %1

ProgramID: FotoCanvas2.IFF
EXEFile: %ProgramFiles%\ACD Systems\FotoCanvas\2.0\FotoCanvas2.exe /dde

ProgramID: Amiga.8SVX.file
EXEFile: %ProgramFiles%\Adobe\Audition 1.5\Audition.exe %1

ProgramID: UltimatePaint
EXEFile: %ProgramFiles%\UP\upaint.exe %1

ProgramID: Amiga.8SVX.file
EXEFile: %ProgramFiles%\Cool2000\cool2000.exe %1

ProgramID: DojoFile
EXEFile: %ProgramFiles%\Slawdog\DOJOPL~1\Dojo.exe %1

ProgramID: PV8.Image
EXEFile: %ProgramFiles%\Ulead Systems\Ulead Photo Explorer 8.0 SE Basic\eViewer.exe %1

ProgramID: PaintShopPro9.Image
EXEFile: %ProgramFiles%\Jasc Software Inc\Paint Shop Pro 9\Paint Shop Pro 9.exe /dde

ProgramID: Amiga.8SVX.file
EXEFile: C:\coolpro2\coolpro2.exe %1

ProgramID: NeroPhotoSnapViewer.Files.iff
EXEFile: %ProgramFiles%\nero\Nero PhotoSnap\PhotoSnapViewer.exe %1

ProgramID: ACDSee 7.0.iff
EXEFile: %SystemRoot%\Program Files\ACD Systems\ACDSee\7.0\ACDSee7.exe %1

ProgramID: PSP6.Image
EXEFile: %ProgramFiles%\PAINTS~1\psp.exe /dde

ProgramID: foobar2000.iff
EXEFile: %ProgramFiles%\foobar2000\foobar2000.exe %1

ProgramID: ACDSee.IFF
EXEFile: %ProgramFiles%\ACDSYS~1\ACDSEE~1\ACDSEE.EXE /dde

ProgramID: ACDSee 8.0.iff
EXEFile: %ProgramFiles%\ACD Systems\ACDSee\8.0\ACDSee8.exe %1

ProgramID: NeroPhotoSnapViewer.Files7.iff
EXEFile: %ProgramFiles%\Nero\Nero 7\Nero PhotoSnap\PhotoSnapViewer.exe %1

ProgramID: PV85.Image
EXEFile: %ProgramFiles%\Ulead Systems\Ulead Photo Explorer 8.5 SE\eViewer.exe %1

ProgramID: iPE.Image
EXEFile: %ProgramFiles%\Nova Development\Photo Explosion Deluxe\Ipe.exe %1

ProgramID: NeroPhotoSnapViewer.Files.iff
EXEFile: %ProgramFiles%\Ahead3\Nero PhotoSnap\PhotoSnapViewer.exe

ProgramID: PaintShopProX.Image
EXEFile: %ProgramFiles%\Corel\Corel Paint Shop Pro X\Paint Shop Pro X.exe

ProgramID: IrfanView.iff
EXEFile: %ProgramFiles%\IrfanView\i_view32.exe

ProgramID: AUD20.Amiga.8SVX.file
EXEFile: %ProgramFiles%\Adobe\Adobe Audition 2.0\Audition.exe

ProgramID: ACDSee Pro.iff
EXEFile: %ProgramFiles%\ACD Systems\ACDSee\8.0.Pro\ACDSee8Pro.exe

ProgramID: PV85.Image
EXEFile: %ProgramFiles%\Ulead Systems\Ulead Photo Explorer 8.6\eViewer.exe

ProgramID: PEX85.Image
EXEFile: %ProgramFiles%\Ulead Systems\Ulead Photo Explorer 8.5 SE Basic\PEX.exe

ProgramID: Amiga.8SVX.file
EXEFile: %ProgramFiles%\Adobe\Audition 1.0\Audition.exe

ProgramID: SnapfireI.Image
EXEFile: %ProgramFiles%\Corel\Corel Snapfire Plus\Corel Snapfire.exe

ProgramID: PV8.Image
EXEFile: %ProgramFiles%\Ulead Systems\Ulead Photo Explorer 8.0\eViewer.exe

ProgramID: MayaIFFFile
EXEFile: %ProgramFiles%\Alias\Maya8.0\bin\fcheck.exe

ProgramID: IrfanView.iff
EXEFile: %ProgramFiles%\IRFANV~1\i_view32.exe

ProgramID: Pagis.Image
EXEFile: %ProgramFiles%\ScanSoft\Pagis\XIFVIEW.EXE

ProgramID: PV85.Image
EXEFile: %ProgramFiles%\Ulead Systems\Ulead Photo Explorer 8.5\eViewer.exe

ProgramID: Pagis.Image
EXEFile: %ProgramFiles%\Xerox\Pagis\XIFVIEW.EXE

ProgramID: XnView.iff
EXEFile: %ProgramFiles%\XNVIEW~1\xnview.exe

ProgramID: NeroPhotoSnapViewer.Files7.iff
EXEFile: %ProgramFiles%\Nero\Nero8\Nero PhotoSnap\PhotoSnapViewer.exe

ProgramID: iPE.Image
EXEFile: %ProgramFiles%\Ulead Systems\Ulead Photo Express 2 SE\Ipe20.exe

ProgramID: AUD30.Amiga.8SVX.file
EXEFile: %ProgramFiles%\Adobe\Adobe Audition 3.0\Audition.exe

ProgramID: NeroPhotoSnapViewer.Files8.iff
EXEFile: %ProgramFiles%\Nero\Nero8\Nero PhotoSnap\PhotoSnapViewer.exe

ProgramID: MyViewPad.iff
EXEFile: %ProgramFiles%\My ViewPad\MyViewPad.exe

Show all 96 listings To Top

an iff container file is a special file format and should only be edited and saved with the appropriate software.

How to solve problems with IFF files

Associate the IFF file extension with the correct application.
Update your software that should actually open container files. Because only the current version supports the latest IFF file format. Search, therefore, e.g. on the manufacturer website after an available AmigaOS update.
To make sure that your IFF file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com.
Click here to open your .IFF file online - secure, fast, and no downloads needed.