Hi Sharon,
Creating cheques in QuickBooks Online lets you track expenses, and helps organize your chequing account and bank statement reconciliation. I'd be happy to provide all the resources you'll need in order to make the most out of the cheques in your QuickBooks account.
How to edit pay cheques: https://quickbooks.intuit.com/community/Employees-and-payroll/How-to-edit-pay-cheques/m-p/261443
How to print cheques: https://quickbooks.intuit.com/community/Manage-vendors-and-expenses/How-to-print-cheques/m-p/261556
How to write cheques: https://quickbooks.intuit.com/community/Help-Articles/How-to-write-cheques/m-p/261921
Align how your cheques print: https://quickbooks.intuit.com/community/Help-Articles/Align-how-your-cheques-print/m-p/262136
If you still need assistance with formatting your cheques in QuickBooks Online, feel free to reach out to our phone support team at 855-253-1536 9am-8pm EST, Monday to Friday. Our agents would be more than happy to help get you back on track.
Have a great day!