.A1 File

The a1 file extension is related to the Free Pascal, an open source compiler for Pascal and Object Pascal programming languages, available for various platforms.

The a1 file contains archive from Free Pascal.

How to open:

Use Free Pascal to work with *.a1 files.

How to convert:

As far as we know, this .a1 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.