What are COS2 files and how to open them
Are you having problems opening a COS2 file or are you simply curious about its contents? We're here to explain the properties of these files and provide you with software that can open or handle your COS2 files.
What is a COS2 file?
Files that contain the .cos2 file extension are primarily used by the Pinnacle Studio video editing software application. This software allows users to edit video media on their computer.
The COS2 files that are used by the Pinnacle Studio software are temporary cache files that are created by certain versions of this software program. These files contain information about a specific file resource, such as a WMA or WMV file.
The COS2 files on a user's computer are automatically created when Pinnacle Studio is being used in edit mode. When the file is no longer needed, it is normally deleted automatically by the computer application.
How to open COS2 files
Important: Different programs may use files with the COS2 file extension for different purposes, so unless you are sure which format your COS2 file is, you may need to try a few different programs.
While we have not verified the app ourselves yet, our users have suggested a single COS2 opener which you will find listed below.
Last updated: March 30, 2021
Various apps that use files with this extension
These apps are known to open certain types of COS2 files. Remember, different programs may use COS2 files for different purposes, so you may need to try out a few of them to be able to open your specific file.
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