What Is an ADTS File?

How to Open, Edit, & Convert ADTS Files

Screenshot of several ADTS files in Windows 10 that open with Windows Media Player
ADTS Files.

A file with the ADTS file extension is an Audio Data Transport Stream file. This file format stores sections of an audio file in various frames, each of which include the audio data and header information. AAC files streamed online are often transferred in the ADTS format.

Some ADTS files may be text files from Autodesk's AutoCAD software.

Note: Some ADTS files may use the .ADT file extension. However, ADT is also the file extension used for ACT! Document Template files and World of Warcraft Map files.

How to Open an ADTS File

You can play ADTS audio files with Windows Media Player, VLC player, and probably also some other popular media player applications.

Autodesk's AutoCAD software can create ADTS files from an AUDIT command for troubleshooting purposes. These are text-only files that can be opened with a text editor.

Note: Do you have an ADT file? If it's not an audio file, it may be an ACT! Document Template file used with the Swiftpage Act! software. Another possibility is that the ADT file is used with the World of Warcraft game as a format for storing information on objects and maps.

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

How to Convert an ADTS File

A free file converter like Freemake Video Converter (which supports video and audio formats) can convert an ADTS file to another audio format like MP3, WAV, etc.

AutoCAD ADTS files can be saved to a different text format with a text editor/viewer like Notepad in Windows. If you want an advanced text editor or need to open the ADTS file on a Mac, see our Best Free Text Editors list.

Still Can't Open Your File?

If you can't get your file to open with the programs mentioned above, there's a good chance that your file isn't in any of those formats. Instead, what might be happening is that you're confusing a different file for one that ends with .ADTS, which can happen fairly easily if the two share some of the same file extension letters.

For example, ADS files are Ada Specification files that cannot open with a music player like Audio Data Transport Stream files. They share some of the same file extension letters as ADTS files but are not related to any type of audio format.

The same can be said for ATS files, TDS files, and and others that look like .ADTS files.

If you don't really have an ADTS file, research the file extension that appears after the file name to learn more about the format and what programs are able to open or convert it.

More Help With ADTS Files

If you're sure that you have an ADTS file, but it's not working like you think it should, 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 ADTS file and I'll see what I can do to help.