Hide borders and headers in one spreadsheet without affecting all calc spreadsheets

I would like to hide as much of the headers toolbars and borders as possible for a single spreadsheet that needs to be as simple as possible, but if I do it affects all of my other spreadsheet files. I played around with styles but failed to make any progress with that. My internet searches came up with no results so apparently I am the only person who wants to do this. Is there a way to format just a single spreadsheet file? My spreadsheet only needs four cells.

Embed it in a writer document?