Is there a way to restore the format of my invoice from a previous version?

Yes, you can restore the format of your invoice from a previous backup by following these steps:
Step 1:Make sure you have a backup of the previous version.
Step 2:Restore the BUSY data backup using the Restore Data option in the Company tab. Choose the folder containing the backup files.
Step 3:After successfully restoring the data, log in with your valid credentials.
Step 4:Go to the Administration option, select Configuration, and look for the Invoice or Document Printing option.
Step 5:Select the Advanced option and choose the desired format for the required voucher type like sales invoice.
Step 6:Click on the desired format, look for the Copy to Disk option, select Desktop, and press OK. Confirm the copying process.
Step 7:Now, return to the older company and log in with the same credentials.
Step 8:Again, go to Administration, select Configuration, and go to Invoice or Document Printing.
Step 9:Choose the Advanced option, select the desired voucher type like sales invoice.
Step 10:Look for the Copy from Disk option, select Desktop, and press OK. Confirm the process to restore the format from the old backup.
This should help you restore the format of your invoice from a previous backup.