Form upload fails because of missing headers

Welcome to the ODK forum, @Ibrahim4265 ! We're glad you're here. When you get a chance, please introduce yourself on this forum thread. I'd also encourage you to add a picture as your avatar because it helps build community!

This forum is for the core ODK software. For issues using Ona you will need to check their support options: https://help.ona.io/contact-support/

It sounds like your XLSForm does not have a survey worksheet with the 3 mandatory columns: type, name, and label. You can read the documentation at:

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