@andreas, I think they want to make a table where each cell is an input field?
I’ve seen clients want these kinds of things a lot because this is often their frame of reference.

Can you do this in mendix, you definitly can.

I think the best way is to create a table where you put your table headers.
Create a listview, and add another table in the listview, and put the input fields in the right cell.

There are some issues here and there, but some nice CSS will fix that.

… that is if this is what you are looking for :D 

Short answer: yes

Try port https://github.com/myliang/x-spreadsheet into a Mendix widget.

Can you provide a little bit more information?

Do you want to create an app based on a spreadsheet? Yes, that’s possible.

I agree, more details about your project vision would be helpful.