Hi Youssouf,
Thanks for the clarification. Unfortunately I'm not aware of any simple way to upload form data. One option would be to submit the data using
CloudCare as a web-based form submission tool, but this isn't very different from submitting the historical data from the app. The other approach would be to use the
Submission API to programatically submit collected data, though that would be somewhat complex and technical to set up.
I'm not sure how your app is set up, but I was suggesting the case importer approach because if your forms populate case data then using that Excel case importer would be the most straightforward approach to getting all of the data in CommCare, though I understand that may not be applicable in your specific situation.
I'll certainly defer to others though if there are some other thoughts or approaches.
Jeremy