Hi BHGSBookkeeper!
I appreciate your effort to post your concern about merging data from two company files. I'd like to clarify some points about Shelby31's answer.
Please note that merging two company files is not available in QuickBooks, so your option is to recreate the transactions you entered in the new company. If your bank account is connected to QuickBooks or if you're able to import your transactions using a Web connect file, simply add those transactions to QuickBooks.
If you want to see some references for QBDT, just click the Topics menu above and click View all help, and select QuickBooks Desktop in the product selection.
Please don't hesitate to go back to this thread if you have any other concerns with your data. Have a good one!