What is JotForm?
JotForm is a free online form builder which helps you create online forms without writing a single line of code. No sign-up required.
At JotForm, we want to make sure that you’re getting the online form builder help that you need. Our friendly customer support team is available 24/7.
We believe that if one user has a question, there could be more users who may have the same question. This is why many of our support forum threads are public and available to be searched and viewed. If you’d like help immediately, feel free to search for a similar question, or submit your question or concern.
If you have exported it to your excel file, that's fine to rename. However, if what you mean is you want to rename it from the grid before you can download the Excel, your only solution is to rename the question label.
If you have other questions or if you need some clarification, please let us know.