Hi sabbiedesign,
Have you got a auto bank feed? If so, deposit your cash to your bank account and wait until the deposit shows up in your bank account within quickfile. Usually that should be the case on the next day. On the next day, go to your bank account in quickfile and look for the deposit transaction. Click tag at the end of the transaction and use transfer between accounts and click on your cash account. Done.
This method assumes that you registered and tagged all all your cash income in your cash account in quickfile to invoices. Or that you registered at least daily or weekly or monthly cash turnover in that account. Also, if you paid for something in cash you will have to record this in that cash account.