Is it possible to import data into jotform?

I have information in a spreadsheet already. I want to create a jotform to gather further data.

I want to be able to combine all of this in jotform so that I can generate new reports including all of the data.

Is this possible?

Yes, here's our guide for that: https://www.jotform.com/help/308-Import-App-Easily-import-your-data-in-Excel-or-CSV-to-JotForm. 

Let us know if you need some help and if you will encounter an error.