@hadez isn't .plist just XML?

The old @belwue OTDR saves .sor-files on 3.5" floppy disks.

I found a perl script that can transform .sor to plaintext. 😅

Fun fact: If I ask `file` it just says "filename.sor: data" (duh, obviously it's data 🤪 ) and `binwalk` gives up with "Analyzed 1 file for 85 file signatures (187 magic patterns) in 10.0 milliseconds".

A hexeditor shows ".SupParams.Wavetek.MTS" in the first few bytes. 🤷‍♂️