Hello @Subash Nalla ,
Welcome to Microsoft Q&A forum.
Probably the issue is hidden in one of the cells.
You may follow the error message to check if in any cell, any symbol/sign(for example, equal sign => "=") was identified by Excel as a formula, instead of a text.
Sincerely,
Tianyu
If the answer is the right solution, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".
Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.