A family of Microsoft spreadsheet software with tools for analyzing, charting, and communicating data.
Hi, good day!
To help narrow down the cause
Which Excel version are you using (2016, 2019, 2021, 2024, or Microsoft 365)?
Did the issue start after a recent Office update?
When you copy the top row and paste it, does nothing happen without any error message?
I look forward to your update and am willing to collaborate with you until we resolve the issue. Keep me posted by clicking "Add comment" below.