A wr3 file extension is related to the Wraptor compression tool for Commodore computers.
WR3 file extension - Wraptor compressed data
What is wr3 file? How to open wr3 files?
File type specification:
The wr3 file extension is associated with the Wraptor. The wr3 file stores compressed data.
Wraptor file format is similar to .arc, but used different method of compression. This files and decompression applications are found only on Commodore C64/C128 computers.
This wr3 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.