Files with put file extension are used by same-named program Put. It was a compressed archive file format.
PUT file extension - PUT compressed data
What is put file? How to open put files?
File type specification:
The put file extension is related to an old and discontinued program called Put that was developed by MicroFox Company.
The put file is a compressed archive used in the program.
This put 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.