How can I create something like the uploaded image in a dynamic jotform?

How can I insert an editable spreadsheet into my Jotform?

Kindly try the spreadsheet widget here https://www.jotform.com/widgets/spreadsheet and see if that works for you. 

It may not be exactly the same looks as your image, but the functions inside that widget might be useful for you.

Let us know if you have any questions or if you need further assistance.