Opening ACC Files

The ACC file type is primarily associated with GEM.

ACC	File extension: ACC
	File type:	desktop accessory executable file

What is an ACC file?

ACC files mostly belong to GEM by Digital Research. ACC files can refer to executable files that run on the TOS operating system.

Main Use: ACC files are used in computers belonging to the Atari ST line-up of the mid-1980s. The essential software compatible with this series of home computers use the ACC file extension. These ACC file extension software are referred to as Desktop Accessories examples of which are ProCal (scientific calculator) and EdHack (Text editor). These ACC files are run with the help of the GUI called GEM ( Graphical Environment Manager) which is a part of the Atari TOS (a derived version of TOS called the Atari TOS where TOS literally stands for 'The Operating System').
Other Uses: ACC file format is used for storing image composer files associated with Altamira Composer, a graphics-based image editor that was initially intended for MS-DOS and was later merged into Microsoft in 1994. ACC files are also used by Graphics Accounts software as data files. Graphical Accounts, an interactive finance application developed by FKJ Software, is useful in the planning and maintenance of personal budgets. These ACC files can be opened in unison with the related BGT(budget) files. ACC file extension is also used to denote ViewMAX files compatible with DR-DOS.

How do you open ACC files?

You need a suitable software like GEM to open an ACC 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 ACC file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a ACC file directly in the browser:. Just drag the file onto this browser window and drop it.

Online ACC File Viewer

Choose your .acc file to view this image

or drag and drop it here

Online File Viewer

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How to convert an ACC file to JPG, PDF, HTML, DOC, ...

If you want to convert or edit an ACC file, you can use our free Online ACC File Converter (powered by Convert.Guru):

To do so, click the "Choose your .acc file to view this image" button above.
After your file is opened in browser,
click "Save as..." in the menu.
Then click the file format (e.g. PDF, JPG, DOCX, TXT, ...) you want.
Download the converted file.

Programs that open and convert ACC files:

GEM by Digital Research
See the previous paragraphs to learn more about the main application. ACC files are often referred to as GEM systems because this type of file is primarily created or used by this software.
AccentDuo (AccentDuo document) by Accent Software
AccentDuo is a multilingual word processer integrated with an interactive translation tool. It was released for Windows in the 1990s and can compose documents in English, French, German, Italian, and Spanish. It can also translate from English to these languages and vice versa. ACC is the file format for a document created using AccentDuo. This file format is classified as Page Layout. Related links: AccentDuo Review
Graphic Accounts (financial account information file) by FKJ Software
Graphic Accounts is a program that allows users to create and maintain personal budgets. The ACC file format stores financial account information for Graphic Accounts. There is corresponding budget BGT file for every ACC file. This file format is classified as Data. Related links: Graphic Accounts on CNET, Graphic Accounts Documentation
Image Composer (raster image) by Microsoft
Image Composer is an image editing software from Microsoft, which was originally created by Altamira Software. The software has been discontinued. It was bundled with other Microsoft programs, such as FrontPage. The ACC file format stores an image created by Image Composer. This file format is classified as Raster Image. Related links: Article About Image Composer, Image Composer Tutorial, Image Editing Guide with Image Composer Reference
TOS (desktop accessory executable file) by Atari
TOS (The Operating System) is the operating system for the Atari ST range of computers. It uses the GEM (Graphics Environment Manager) operating environment. The executable files for desktop accessories in GEM, such as a clock or calculator, have the ACC extension. This file format is classified as System. Related links: Atari TOS Guide, Atari TOS on Wikipedia
ViewMAX (desktop accessory executable file) by Digital Research
ViewMAX is a Common User Access(CUA) compliant file manager that is supplied with certain versions of DR-DOS. It is based on the GEM (Graphics Environment Manager) operating environment. The executable files for desktop accessories in GEM, such as a clock or calculator, have the ACC extension. This file format is classified as System. Related links: ViewMAX on Wikipedia, DR-DOS on Wikipedia, GEM vs ViewMAX

ACC file extension format:

Each file has a definite file format, that is, how the stored data is arranged in the file. 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. However, different programs can use the same file extension, and file extensions can be assigned incorrectly. If there are problems opening a file, you must first determine the file format used. Our evaluation of the ACC files looks like this:

The file type with the extension 'ACC' includes different formats for the applicable programs. The file formats most commonly found in ACC files are:

30% of all ACC files are based on the zip format, that is, an ACC file includes multiple compressed files. The average file count is 107 with most ACC files containing between 31 - 170 compressed files. Customary file names are ACCOUNT.MEM, AGING.CDX, APPAY.CDX, APPIN.CDX, APPOST.CDX, APVEND.CDX, ARCUST.CDX, ARPAY.CDX, ARPIN.CDX, ARPOST.CDX, ARTRAN.CDX, ASSET.CDX, BADDEBT.CDX, BANK.CDX, BANKSPR.CDX, BSPBANK.CDX, BUSINESS.CDX, CAOPEN.CDX, CURRENCY.CDX, CURRENCY.MEM and ERRFILE.CDX. If you want to see the included files and images, simply rename the file extension to .zip and double-click it. A typical file size is 280 KB. The files contain the following words: accmem.dbf. A common filename is BACKUP.ACC.
7% of all ACC files are based on the popular MP4 file format. MP4 is a multimedia container format used to store video and audio and allows streaming over the Internet. These are binary files, so they do not contain words or text. The files are often between 49 KB and 850 KB in size. Certain words are almost always found in the files, such as lmvhd, \tkhd, ftypisom, isomiso2mp41, trak and moov.

All other ACC files (63%) have no uniform format, often, for example, DeskMate Program/Accessory executable and zlib. Tagged as statement, sequences, punjab, india, becc or film. If you want to find out which format your ACC file belongs to, just click on the button "Choose your .acc file to view this image".

Technical Data for ACC File Extension

File classification:

System

Related files:

aac, ubs, accx, accdb, pdf, asc, dbf, jpg, ave, rar, hea, cdx, exe, zip

Mime type:

application/vnd.americandynamics.acc, application/octet-stream

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: ImageComposer.acc, FileType: acc Image

ProgramID: View Station Document
EXEFile: C:\View\Station\Image.exe %1

ProgramID: ImageComposer.acc
EXEFile: %ProgramFiles%\MIA08B~1\imgcomp.exe %1

ProgramID: ACEMegaCoDecSPack.IndeoVideoFileS
EXEFile: %ProgramFiles%\ACE Mega CoDecS Pack\Media Player Classic\mplayerc.exe %1 /open

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

ProgramID: ACEMegaCoDecSPack.IndeoVideoFileS
EXEFile: %ProgramFiles%\ACE Mega CoDecS Pack\BSPlayer\bsplayer.exe /open

ProgramID: ACEMegaCoDecSPack.IndeoVideoFileS
EXEFile: %ProgramFiles%\ACE Mega CoDecS Pack\Media Player Classic\mplayerc.exe

ProgramID: qvodplayer.acc
EXEFile: %ProgramFiles%\QvodPlayer\QvodPlayer.exe -localfile

ProgramID: JDL.AccountingFile
EXEFile: %ProgramFiles%\JDL\system\object\zaimsys4\ikerecvload.exe

ProgramID: stormplayer.acc
EXEFile: %ProgramFiles%\StormII\Storm.exe /play

Show all 10 listings To Top

an acc desktop accessory executable file is a special file format by Digital Research and should only be edited and saved with the appropriate software.

How to solve problems with ACC files

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