The process cannot access the file because it is being used by another process

Question

I have a set of nightly reports.

Sometimes I get the exception:

The process cannot access the file because it is being used by another proce

Answer 1

1. Process Explorer > Find > Find Handle > type in your file name.
2. Unlocker. Try to open it, if it has a lock, unlocker will open and show you the programs that lock it.