To export a batch, you create or select the batch, then click Options > Export on transaction entry screens.
You do not have to export an entire batch each time. You can set criteria to export a range of transactions, and you can specify the transaction information to export to your other program.
Important! If you export batches that you plan to import back into Cashbook, you should change the document numbers in the exported batch before importing it, so that you do not import duplicate document numbers that you cannot post in Cashbook.