Simplified spreadsheet solution for field staff?

I work with some field staff who are not familiar with software in general. Training is very unlikely

We need to get information from them. An example of this would be a time sheet. Currently this comes in multiple forms but primarily physical paperwork and text

I’m looking to see if there’s a simplified solution, perhaps like a very limited Excel: just the table and rows the ability to fill in the rows. Excel is too confusing with the extraneous buttons for text size, font size, formulas, etc.

Any ideas would be appreciated