Thanks for the prompt reply, @Jackie2022.
The limitation of earlier versions of MS Excel has a 256 column limit and will result in a warning message- "Excel allows 256 columns in a worksheet" if exceeded. That said QuickBooks only supports exporting 256 columns and below.
If you need more than 256 columns, you can use a third-party app that supports exporting files more than those columns. Or just contact your third-party administrator about the integration.
Also, I have here some articles about exporting MS Excel files in QuickBooks for your future reference:
Keep in touch if you need any more assistance on \exporting your data, or there's something else I can do for you. I've got your back. Have a good day, @Jackie2022.
