Is it possible to integrate with indesign datamerge?

do you have a plugin with indesign data merge (via excel)?

I'm afraid that we don't have such integration.

If it works for you, you can download submissions in Excel and upload to InDesign, if it is possible?

Here is a guide:

https://www.jotform.com/help/44-How-to-Export-Form-Data-to-Excel

Also, maybe a Spreadsheet integration would work: 

https://www.jotform.com/help/228-How-to-Integrate-Form-with-Google-Spreadsheet

Hope it helps.