What is a DMA File?

How to Open, Edit, & Convert DMA Files

Screenshot of the IBM logo

A file with the DMA file extension is most likely a DOORS Template file created with IBM Rational DOORS. If not, your specific DMA file may instead be a DMOD Audio file.

Note: DMA also stands for Direct Memory Access, which is the name given to the process of data skipping the CPU and transferring directly out of RAM to a peripheral device. Direct Memory Access has nothing to do with files that end in the DMA extension.

How To Open a DMA File

DMA files that are DOORS Template files can be opened with IBM Rational DOORS. DMA files that were created in an older version of the software should be able to open in newer versions through the File > Restore > Module menu.

You can play a DMOD Audio file using UltraPlayer. I know that VLC supports a lot of audio and video formats, so you may try opening the file with that application if UltraPlayer doesn't work. Other free audio players or editors may be able to open these types of DMA files too so if you have another audio player on your computer you might want to try it as well.

Note: VLC doesn't associate itself with DMA files, so you can't just double-click the file and expect VLC to start using it. Instead, you'll need to open VLC and use its Media > Open File... option to browse for the file. Just be sure to select the "All Files" option while browsing for it so that VLC can find the .DMA file.

If your DMA file isn't opening with any of these programs, you might want to check that you're reading the file extension correctly. DM, DMC, and DMG files use very similar-sounding extensions but each opens with different software.

Tip: Still can't open your DMA file? Try opening it with a text editor like the Notepad++.

If the file is composed entirely of normal-looking text, then your DMA file is just a text file. Otherwise, see if you can find some text somewhere within the file that could help identify the format it's in or what program was used to create it.

If you find that an application on your PC does try to open the DMA file but it's the wrong application or if you would rather have another installed program open DMA files, see my How To Change the Default Program for a Specific File Extension guide for making that change in Windows.

How To Convert a DMA File

IBM Rational DOORS can export a DMA file to a different format that can then be used in other programs such as DoorScope.

Most audio files can be converted to a new format with a free audio converter, but I don't know of any that support the DMA format. You might be able to open the DMA file with VLC and then use the Media > Convert / Save... menu option to convert it to a more popular format.

More Help with DMA Files

See Get More Help for information about contacting me on social networks or via email, posting on tech support forums, and more. Let me know what kinds of problems you're having with opening or using the DMA file and I'll see what I can do to help.