OS/2 file
File type: Various data file
A $$A file is a file associated with the OS/2 operating system.
Its contents and purpose depend on the OS/2 software that created or uses it.
File type category:
Various data file
Date updated: September 24, 2026
The $$A file extension identifies a legacy file associated with the OS/2 operating system. It is not sufficient by itself to determine the file's contents or the application that created it.
The file may be usable only with the original OS/2 program or system component. This file type is no longer in common use.
Open the $$A file with the OS/2 application that created it or normally uses it. An OS/2-compatible environment may be required if that application cannot run on the current operating system.
Because the extension does not identify a specific general-purpose format, there is no reliable universal viewer for these files.
There is no general conversion method for a $$A file. If the original OS/2 application can open it, use that application's export or save-as function to create a format supported by current software.
Without the original application, the file may not be convertible reliably.
Software applications that handle other tasks involving $$a files:
Other operating systems or devices
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