Files with 12a file extension can be found as some system files used in one of the previous versions of Microsoft Windows.
Software that open 12a file
12A file extension - Microsoft Windows data
What is 12a file? How to open 12a files?
The 12a file extension is reported to have been used in one of the versions of Microsoft Windows operating system.
The 12a file stores some kind of data used by Windows.
No more information could be found.
This 12a file type entry was marked as obsolete and no longer supported file format.
This type of file is no longer actively used and is most likely obsolete. This is typically the case for system files in old operating systems, file types from long discontinued software, or previous versions of certain file types (like documents, projects etc.) that were replaced in higher versions of their original programs.
The default software associated to open 12a file:
Company or developer:
Microsoft Corporation
A family of operating systems developed by the Microsoft Corp. The first Windows was released in 1985 as a GUI add-on to MS-DOS. MS-DOS based Windows versions were developed to 2000, when was released the last version called Windows ME. Windows based on NT core started in 1993. Windows NT family are developed to these days, the latest version is called Microsoft Windows 11.
List of recommended software applications associated to the .12a file extension
Recommended software programs are sorted by OS platform (Windows, macOS, Linux, iOS, Android etc.)
and possible program actions that can be done with the file: like open 12a file, edit 12a file, convert 12a file, view 12a file, play 12a file etc. (if exist software for corresponding action in File-Extensions.org's database).
Unspecified and all other actions for computer programs working with 12a file - Microsoft Windows data
Click on the software link for more information about Microsoft Windows. Microsoft Windows uses 12a file type for its internal purposes and/or also by different way than common edit or open file actions (eg. to install/execute/support an application itself, to store application or user data, configure program etc.).
