I originally made 3dspread3 targeting firefox. A cool feature of firefox is that you can ctrl-select on tables and have it not wrap the whole document. Try it out: https://en.wikipedia.org/wiki/List_of_countries_by_GDP_(nominal)#Table It was super convenient. But sadly that didn't work in chrome. That's unfortunate because it's pretty necessary in a spreadsheet. But I recreated the behavior in chrome. This means that the program is finally usable in chrome because that missing one feature is the one reason I would suggest against using it. The main issue was that without it it is impossible to copy data out of the spreadsheet, so I didn't want people to put time into a spreadsheet only to find out the data is 100% locked inside it. One reason why 3dspread3 is cool is because you can write formulas you would never be able to write in excel, because it uses javascript, a full fledged programming language. Basically creating a cross between a spreadsheet and a jupyter-book. But sometimes you still want to use excel so you might be using 3dspread3 to make a quick calculation that you couldn't do otherwise. So it would really suck if you couldn't get the data out. But that's fixed now. So now there's no reason to not make it your main spreadsheet app ;) tl;dr: 3dspread3 now usable in Chrome, Brave. Ctrl-click and Ctrl-drag to select things for copy and fill down.