Files with 12A extension can be found as some system files used in one of the previous versions of Microsoft Windows.

Detailed description

Software that works with 12a file extension

Add comment

Bookmark & share this page with others:

12A file extension - Microsoft Windows file

What is 12a file? How to open 12a files?

File type specification:

Various data file type icon Various data file type

12a file icon: 12a filetype icon

The 12A file extension is reported to have been used in one of the versions of Microsoft Windows operating system. No more information could be found.

The default software associated to 12a file type:

Microsoft Windows icon

Microsoft Corporation logo Microsoft Windows  Microsoft Windows software

Company or developer:
  Microsoft Corporation

Microsoft Windows is 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 Windows 10.

Help how to open 12A files:

This file type is not meant to be opened directly, there is no software that could open and work with it directly, or there is no information available in public sources about opening this file type. This is usually the case of some internal data files, caches, temporary files etc.

How to convert file with extension 12A:

As far as we know, this .12a file type can't be converted to any other file format. This is usually the case of system, configuration, temporary, or data files containing data exclusive to only one software and used for its own purposes. Also some proprietary or closed file formats cannot be converted to more common file types in order to protect the intellectual property of the developer, which is for example the case of some DRM-protected multimedia files.

List of recommended software applications associated to the .12a file extension

Recommended software programs are sorted by OS platform (Windows, Mac OS X 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's database).

  • Others 12a file

Unspecified and all other actions for computer programs working with 12a file - Microsoft Windows file

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.).

Microsoft Windows:

Previous file extension
129 file extension > Various data file types

Next file extension
file extension 12M


Follow us!

Enter any file extension without dot (e.g. pdf)
Search for file extension details and associated application(s)

RSS feed