Processes sometimes need to keep files open. They could be files that you are viewing or editing, or temporary or system files that the process needs to work properly.
To see which files a process has open:
Find the process in the Processes tab and click once to select it.
Right-click the process and select Open Files.
In the list of open files that appears, you might find some special files called sockets. These are actually a way for processes to communicate with one another, and are not normal files that you can view or edit.
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