Is it because it is a teamwork file and you don't have the permission to do this?
Barry.
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I think the reason you cannot delete it is because it is within an LCF (Library Container File), as far as I can see from the screenshot.
The LCF file is a single file so obviously nothing within it can be deleted individually in the Library Manager.
You would have to extract the LCF file to a folder, then add that folder as a Linked Library, and then you could delete the individual items within that library.
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