Tips to open AD2 file

Can't open the AD2 file? You are not the only one. Thousands of users face similar problems every day. Below you will find tips on how to open AD2 files as well as a list of programs that support AD2 files.

AD2 file extension

File Name ADPCM 2-bit Compressed Voice Format
File Category Audio Files

The AD2 file is supported on 3 operating systems. Depending on your operating system, you may need different software to handle the AD2 files. Below is a summary of the number of programs that support and open the AD2 file on each system platform.

Operating systems
  • 3
  • 1
  • 1
  • 0
  • 0
  • 0

What is AD2 file?

The file in the AD2 format belongs to the Audio Files category. Audio Files consists of 771 similar files. ADPCM 2-bit Compressed Voice Format is supported by 3 operating systems. These systems consist of Linux, Mac OS, Windows, although it may occasionally be found on another system, it will be non-functional. It is recommended to use Microsoft Windows NotePad to handle this file. This is a program created by Microsoft Corporation. There are also 4 alternative programs to handle the AD2 file. You can use TextEdit, Sublime Text, gedit, NotePad++ text editor in case Microsoft Windows NotePad cannot be used.

How to open AD2 file?

An often recurring problem with ADPCM 2-bit Compressed Voice Format is that AD2 is not associated with the correct program file. This is manifested by the fact that AD2 files open in unusual applications or do not have an assigned program. This can be quickly resolved by following the instructions below.

The first thing you should do is just "doubleclick" on the AD2 file icon you want to open. If the operating system has an appropriate application to support it and there is also an association between the file and the program, the file should be opened.

Step 1. Install Microsoft Windows NotePad

In this case, you should first verify that the Microsoft Windows NotePad application is installed on the computer. The easiest method is to use the system search engine by entering the program name Microsoft Windows NotePad in it. If we do not have this program, it is worth installing it, as it will help you automatically associate the file AD2 with Microsoft Windows NotePad. Below you will find a list of applications that support AD2 files.

Step 2. Create association of Microsoft Windows NotePad with AD2 files

However, it may happen that the application itself does not cause the AD2 file to open in the Microsoft Windows NotePad application, but you can set it manually. The association can be created using the drop-down list available by right-clicking on the file and selecting Properties. The displayed window will contain information about the program that supports this type of file. Using the "Change" button we can select the desired program. If there is no software on the list, simply select "Browse" and manually select the directory where the application is installed. The "always use the selected program ..." field will set the Microsoft Windows NotePad application as the default for handling the AD2 file.

Step 3. Update Microsoft Windows NotePad to the latest version

If, despite the association of the Microsoft Windows NotePad program with the ADPCM 2-bit Compressed Voice Format file, the file still does not open, check the program version and possibly update it to the newest version. In this case, use the Microsoft Corporation website or update the program from the application.

Step 4. Check for the following problems with the AD2 file

If the above steps do not help, you can assume that the file itself is not correct. This could be due to the file itself, the cleanest issues are:

The affected file may be 0 KB or smaller than expected. This suggests truncating the AD2 file contents when downloading or copying. Downloading the file again should fix the problem.
The computer may have fallen victim to a computer virus or hacker. A virus scan using an up-to-date antivirus program should fix the problem. Alternatively, you can use the scanners available online. The scan should cover the entire computer, not only the AD2 file that we want to open. Sometimes virus-infected AD2 files cannot be recovered, so make a backup in advance.
This can happen especially when the program is dynamically developed and the structure of the AD2 files changes over time. Help should be sought from the software developer, as they usually recommend using free file converters or installing an older version of the program.
There can be many reasons for the failure. Repairing is very dependent on the file type. Sometimes the program itself has options to repair the most popular AD2 file corruption. The easiest way to restore the file is from a backup or by contacting , but this one can be expensive. Not all damage can be reversed.
When reading, a message appears that the file was encrypted or corrupted. The encrypted AD2 files can be used by the device on which they were encrypted, on any other device it is required to have the appropriate cryptographic key and decrypt the file before its recovery.
The operating system protects files in some locations (e.g. the root of the system partition) against unauthorized access. While there is usually no problem reading such a file, it may not be possible to save it. Copying the AD2 file to another location will fix the problem.
This problem usually affects more complex files. You may find that another program you are using is preventing you from working with the file. Running programs (including those in the background) should be verified. If the error persists after closing other programs, wait for a while. Antivirus programs or a backup being made may lock the file for a while without the user's knowledge. If this does not work either, restart the device.