ADF File Type

- The quick facts

What are ADF files and how to open them

Are you having problems opening an ADF file or just wondering what they contain? We explain what these files are used for and show you software that we know can open or otherwise handle your files.

What is an ADF file?

ADF files have multiple uses, and Act! Database is one of them.

Act! Database

Act!, previously Sage Act, is a marketing and CRM software solution. They name their database files using the .adf file extension.

How to open ADF files

We have identified one ADF opener that is compatible with this specific type of ADF file.

Programs that open Act! Database files

ACT! by SageACT! by SageVerified

Last updated: June 29, 2022

All known file formats using extension .ADF

While Act! Database is a popular type of ADF-file, we know of 12 different uses of the .ADF extension. Different software may use files with the same extension for different types of data.

ARIS Document File

These ADF files contain flowcharts and diagrams created in ARIS, a Java-based application used to manage and analyze your business processes.

ADF opener for Windows

We have identified one ADF opener that is compatible with this specific type of ADF file.

ARISARISVerified

SNAP Archive Data File

These ADF files are archive files created in SNAP Surveys, an online survey management service.

ADF files consist of the MDF (Metadata File) and the RDF (Raw Data File). Snap Surveys use this file type to help you run surveys that you can either store or share the data you collect. You can use Snap WebHost to run and manage online surveys.

While we have not verified the apps ourselves yet, our users have suggested 10 different ADF openers which you will find listed below.

Acorn ADFS Disk Image

These ADF files contain the content of floppy and hard drives from Acorn computers. You can load these ADF files on your PC by using an Acorn emulator or ADFS Explorer. The Master 128 range of computers used ADFS as one of their disk file systems.

While we have not verified the apps ourselves yet, our users have suggested 10 different ADF openers which you will find listed below.

Advanced Data Format Database

These ADF files contain numerical data that is stored in an Advanced Data Format Database. ADF files consist of nodes, and each node follows the same rules: There is one "central root", every child node has a parent, and the root node has no parent. The nodes form a tree structure to allow for multiple file branching. When opening an ADF file, the root receives information from the calling program to access the tree. A search gets run on the tree to find the needed information or to store new data.

While we have not verified the apps ourselves yet, our users have suggested 10 different ADF openers which you will find listed below.

Amiga Disk image File

These ADF files contain the disk images used by the Amiga home computers and emulators. ADF files are typical images of the Amiga-formatted track, held on the 880 KiB disk. EasyADF is an app that allows you to download ADF files and copy them onto your Amiga disk. ADF Opus, a Windows-based program, will enable you to create your own ADF files. Acorn also used these ADF files in their computers and emulators.

While we have not verified the apps ourselves yet, our users have suggested 10 different ADF openers which you will find listed below.

PS/2 MicroChannel Adapter Description File

These ADF files contain the configuration information of the MicroChannel Adapter card. ADF files are text files that store information about the card's memory addressing and interrupts.

MicroChannel cards were the basis of early plug-and-play systems. You insert your MCA card with a custom floppy disk (this came with your pc) to add new cards (video, memory, printer, etc.) to your pc.

This allowed you to add new cards to your original hardware without the help of an expensive technician. The downside was that you could not add or change your PC's cards if you do not have the custom floppy disk.

You usually do not need to edit or view these files, as they only contain information usable by the software program that uses them.

SuperDOS Adapter File

These ADF files contain the information and configuration of the BlueBird SuperDOS, a multi-tasking multi-user operating system used to run business applications over a "dumb" terminal. This replaced expensive minicomputers with a single PC.

The SuperDos ADF file runs when you boot your PC. BlueBird SuperDOS assisted car rental agencies and movie/storage companies to reduce the number of expensive computers on every desk.

While we have not verified the apps ourselves yet, our users have suggested 10 different ADF openers which you will find listed below.

More file formats using the ADF extension

Through our research of ADF files, we know that the following formats exist. However, we have not yet analyzed them in detail.

  • ABackup Backup Disk Image
  • Ami-Back Backup Disk Image
  • Antenna Data File
  • Robot Arena Hazard Configuration

Various apps that use files with this extension

These apps are known to open certain types of ADF files. Remember, different programs may use ADF files for different purposes, so you may need to try out a few of them to be able to open your specific file.

ARCDRAWARCDRAWUser submitted
123Scan2123Scan2User submitted
Anquet MapsAnquet MapsUser submitted
TatukGIS ViewerTatukGIS ViewerUser submitted
Amiga ForeverAmiga ForeverUser submitted
Actual DrawingActual DrawingUser submitted
Aldec Active-HDLAldec Active-HDLUser submitted
SnapSnapUser submitted
Dragon UnPACKerDragon UnPACKerUser submitted
RetroPlatformRetroPlatformUser submitted

Help us help others

File.org helps thousands of users every day, and we would love to hear from you if you have additional information about ADF file formats, example files, or compatible programs. Please use the links below or email us at submit@file.org to discuss further.