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May 10, 2026 |
File extension cos2
Name: Miscellaneous Files
Popularity: 4
Open With: Pinnacle Studio
What is this cos2 file?
Temporary file created by some versions of Pinnacle Studio, a program used for editing videos; stores information for a specific resource, such as a .WMV or .WMA file; generated automatically by Pinnacle Studio when in edit mode. COS2 files can be safely deleted. Pinnacle Studio will regenerate them the next time a project is edited.
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