In github/fast.ai, there are excels used by Jeremy, I tried to use google spreadsheet to open/edit them, but due to some compatibility, fail.
In the lesson2, 3, videos, and maybe in all of the videos, Jeremy would use a lot of excel to illustrate his idea. But I could not open/edit them, since online google spreadsheet is not so compatible with them.
How do you solve this issue ? To buy a Microsoft excel ? This cost $109.99, very expansive..