Files with 3ta file extension might be found as Triple-T Animation files. Might be old and no longer used.
3TA file extension - Triple-T Animation data
What is 3ta file? How to open 3ta files?
File type specification:
The 3ta file extension seems to be used for a Triple-T Animation file type.
Most likely some old format without support from the developer. No further information could be found.
This 3ta 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.