> But what on earth are using using "external tools" integrated to Excel for? Off the top of my head: Operation Research... i.e. serious calculations to decide

> But what on earth are using using "external tools" integrated to Excel for? Off the top of my head: Operation Research... i.e. serious calculations to decide where to spend a lot of money, like: Where should I build my power station? I know, for this I will get my mixed integer programming suite out. Where is that in Google sheets??? // note, I adore Sheets, but it definitely definitely cannot compete with excel for serious computation suites or even modest visualisations.