Having problems opening a COS2 file?

We have programs that can open or convert your COS2 files.

Opening COS2 files

Did your computer fail to open a COS2 file? We explain what COS2 files are and recommend software that we know can open or convert 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.

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Try a universal file viewer like Free File Viewer. It can open over 200 different types of files - and most likely yours too. Download Free File Viewer here.

About File Extension COS2

File.org aims to be the go-to resource for file type- and related software information. We spend countless hours researching various file formats and software that can open, convert, create or otherwise work with those files.

If you have additional information about the COS2 file format or software that uses files with the COS2 suffix, please do get in touch - we would love hearing from you.