There are various methods to combine two (or more) Quickbooks data files into a single Quickbooks file. You can do it yourself using Karl Irvin’s Q2Q tool (http://www.q2q.us/) or use a File Merge Service (http://quickbooksrepairpro.com/Quickbooks-File-Merge-Service.aspx).

The data transfer tool lets you transfer list and transaction data from one QuickBooks file to the second QuickBooks file. QuickBooks files are […]