I have gone through the set up wizard for the General Ledger Exchange to import a journal entry from a CSV vile and got all of the way through to the GL Exchange window to import the file.  When I click on the Proceed file I get an error that says, "Source file cannot be opened. Retry?".  When I retry I get the same error.  I have looked at the source file and cannot see anything obvious.  Can any one else help?