Delete ALL the records from the table. And then compact the database.
The autonumber should start back at 1.
Just FYI 1) Say you entered 10 records and then deleted 6 through 10. THe next autonumber that iw used will be 11. If you compact the database before entering a new database, it wil restart at 6 instead. 2) Say you entered 10 records and then deleted 2, 3,4,5, and 10. THe next autonumber that will used will be 10. It restarts at the next number after the highest autonumber that is in the table. This also applied to #1, but I wanted to just give you an easier example.