Make the excel file a template document linked to unformatted data. Then you can export to the unformatted data. Unfortunately ODS Excel does not support adding worksheets to a workbook, so PROC EXPORT is pretty much the main option.
2025 SAS Hackathon: There is still time!
Good news: We've extended SAS Hackathon registration until Sept. 12, so you still have time to be part of our biggest event yet – our five-year anniversary!