Error message seen while uploading xlsform

I cannot upload the xls form in the kobo server please anyone can help

line 2 error _column 1 (char)

Welcome to the community @cl_buildca2p! Have you tried validating your xlsform with this online validator? It should be able to help you identify your issue. If you are still not able to solve your issue, please feel free to share your xlsform with the community. The community would love to help you solve your issue.