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.
Our apologies for the issue. I've checked this form http://www.jotformpro.com/form/50493064135956 from your account and I was able to view the data in the excel file. It must be a temporary problem so kindly try it again and please update us here for the result.
Also, don't forget to clear your forms cache before downloading the file: http://www.jotform.com/help/229-How-to-Clear-your-Form-Cache.
Thank you and I look forward to your reply!