Software & Apps File Types What Is a DAA File? How to open, edit, & convert DAA files by Tim Fisher General Manager, VP, Lifewire.com Tim Fisher has 30+ years' professional technology support experience. He writes troubleshooting content and is the General Manager of Lifewire. our editorial process Facebook Twitter LinkedIn Tim Fisher Updated on April 10, 2020 your personal camera obscura / Getty Images File Types Design Cryptocurrency MS Office Windows Linux Google Drive Apps File Types Backup & Utilities View More Tweet Share Email A file with the DAA file extension is a Direct Access Archive file. They're a lot like ISO files in that they can be full image copies of discs, but have some advantages over ISO like compression and file splitting abilities. Some DAA files might be encrypted, protected behind a password, and even split up into smaller pieces like file.part01.daa, file.part02.daa, etc. The Direct Access Archive format is a proprietary one developed by the same people that created the disc imaging software PowerISO. How to Open a DAA File Direct Access Archive DAA files can be opened, created, and burned to a disc with the PowerISO program. For Windows, Pismo File Mount Audit Package should be able to mount a DAA file as a virtual disc. This makes Windows think there's a real disc inserted even when one isn't really there. It's useful because you don't have to burn the DAA file to a CD before using it. AcetoneISO does the same but for Linux. MagicISO and UltraISO can open DAA files as well. Some free file zip/unzip tools may be able to open DAA files, too, which would let you access the data without having to burn the files to a disc and without having to mount the DAA files as a virtual disc. How to Convert a DAA File Even though DAA files are designed strictly for PowerISO, there are a few methods for converting DAA to ISO so that you can burn it to disc with image burning software like ImgBurn. One way to convert a DAA file to the ISO format is a tool called DAA2ISO. It's straightforward to use and doesn't need to be installed on your computer. It even supports multipart DAA files. DAA Converter converts DAA to ISO on macOS. It works in the same way that DAA2ISO does, but has a graphical user interface. Once you've converted the DAA file to ISO format, burn the ISO image on a disc. You cannot convert a DAA file to MP3, PDF, or any other format like that. Since DAA files are disc image files, they can technically only be converted to other disc image formats, which is why it's possible to convert DAA to ISO. However, if you open the DAA file with a file unzip tool as we explained above, you can then convert those individual files to something else. Use a free file converter to do that. Is the File Still Not Opening? The most likely reason for why none of the programs mentioned above are unable to open the file is because it's not actually a DAA file. It can be easy to mistake one file for a DAA file if the file extensions are similar. For example, DDAT files share some of the same file extension letters as DAA files even though the two formats are completely unrelated and require different programs to work. DDAT files are DivX Temporary Video files that open with DivX software. DAE is another example where the file looks a lot like it reads "DAA" and could be used with a DAA file opener, but it's really reserved for a different format that's incompatible with DAA related software.