I am creating a database to produce reports, invoices, track clients, etc. It will essentially be used to create an investigative report. I created a "File Number" field set as an autonumber so each file would have a new file number. In the properties of this field, I changed the format to indicate "1823-0"000. This would allow each file number generated to have "1823-0" along with the auto generated number now being 3 digits. The problem I have is in establishing relationships in related tables. The data in the other tables recognizes the field as text so it wont allow me to link it due to incompatible fields. Any suggestions? Also, will this affect any other aspects of my database (running queries). My goal is to link multiple tables (clients, customers, details, exhibits, etc) in order to produce a report. I enjoy this site as it has helped me on many occasions. Thanks