.H__ File

The h__ file extension is sometimes used for C++ header files, but the native file extension for C++ header file is H.

Most likely some old format without support. No further information could be found.

This h__ 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.

How to open:

Use compatible tools to work with *h__ files.

How to convert:

Probably can be compiled to other formats.