The database used by the Advertiser Helper software application appears on your PC as just another file - with the file type ".sdf".

There is no limit in how many databases you create or use with the software. The tools database location option gives you the ability to specify which database file is currently being used. The software will remember the active database in use until you change it.

Simply click the "browse dialog" icon to the right of the "New Location" text box to open another database file.

Next Step: Compact Database