1. In the Blackbaud software, go to the Export module.
  2. Right-click on any white space in the Export list and select Columns...
    Export columns
  3. Make sure the "File Name" column is included on the "Display these columns" list
    File Name Column
  4. Click OK
  5. In the Export list, look at the File Name column. This column will show the name of the .mdb file that it created last (if the data is available)

Another option would be to compare the list of fields in the Crystal report to the list of fields in the Export output. If the fields match, that may be the Export that was used to build the Crystal report.