Thank you for taking the time to reply. I need to back up a level and go for more the beginner perspective. When looking at the investing.com site, and selecting their Tools items, then sub items, I did not recognize anything tells me how the data gets from their site into a CSV or Excel file. What do I need to do on my end to initiate that transaction? And please, I am hoping for a link somewhere as I am sure this has been explained many times.
A day or two ago I found that Excel has a built in feature called "Get <something>" that does that. Now I cannot find a trace of it. My ability to create search terms that others use is rather poor and often frustrating. But just now I did find something different that looks like a formula: "=STOCKHISTORY(...) Are one of those two the way to go?
Oh please, something someone has written is much preferred over a video.
Edit: Oops, I now see that stock history is only with MS 365, which I do not use. I have Office 2019.
Edit: Please point me to an example app that will go to a site and download the data for a selected crypto-coin. I will have to edit in my API key and some information about the specific coin and the time frame. But other than that, I need a function app rather than a subroutine.