Error: Filename is not valid when quitting Excel due to username and filename.
Error:
Filename is not valid.
Cause:
This problem occurs because the user has logged on to the computer with a user name that exceeds eight characters and the use of long filenames is disabled.
Solution:
Log on to the computer using a user name that has eight or fewer characters.
1) If the message is still displayed, click 'OK' to dismiss the message.
2) Log on to the computer with a user name that has eight or fewer characters.
