"Now that I use an OS that Excel doesn't support"
I'd guess Libre Office 'Calc' will do what you need, yeah.
On a semi-related note, has anyone ELSE observed that the Windows 2.x screenshots with Excel 2.0 in the article look WAY TOO MUCH like 2D FLATSO Win-10-nic ? Just wanted to point that out. Yes, I am _COMPELLED_ to do so.
Of course, "that" look+feel was based on Windows 1.0, even 2D'er and FLATSO-er than 2.x [but at least the colors weren't all 'shades of grey'].