Theme that will act as a spreadsheet

I have a website that I have been uploading Excel spreadsheets to. I would like to find a wordpress theme that would accomplish the same thing.
The spread sheet contains about 6 columns and about 200 rows.
It lists powder coating colors.
It has the colors name, its RAL number, the number of pounds available, and some other stuff.

Is there a free theme that will accomplish this. He has been contacting me every time he makes a change. If there is a free theme that will accomplish this I can show him that he doesn’t need me to update his site. Is there a theme that has a spread sheet incorporated into it? Or is there a work around to accomplish this.

Thank you for your consideration