A ptcop file extension is related to the PxTone audio editing software developed by Pixel.
PTCOP file extension - PxTone music data
What is ptcop file? How to open ptcop files?
File type specification:
The ptcop file extension is associated with the PxTone, a Japanese music composing software and audio tracker for Microsoft Windows operating system.
The ptcop file stores music composed in PxTone.
This ptcop 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.