[creinhardt]

I was floored to find out recently that the web interface for iCloud (iCloud.com) has no way to edit a spreadsheet in-browser. I thought for sure they’d have browser based Numbers at this point, but nope! I think if they haven’t done this yet it ain’t gonna happen.

[LexGray]

I presume you mean how you can upload CSV or XLSX spreadsheets but not view them? It does seem an oversight they do not have conversion on the website or the ability to import into a spreadsheet. More interesting is how Pages gives a nice red exclamation saying not a supported file while Numbers gaslights you letting you share something you can’t use.