Files with usbso file extension might be found as saved user's options from LeCroy Protocol Analyzer products.
USBSO file extension - Teledyne LeCroy Protocol Analyzer settings
What is usbso file? How to open usbso files?
File type specification:
The usbso file extension seems to be related to Teledyne LeCroy Protocol Analyzer products and used for one of its settings files.
These peso files contain a user's options for searching for specific data within a protocol trace file.
This usbso 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.