Hi Ronnie,
I hope you that you are well.
I've been looking at the first function of the Spreadsheet category and concluded that the wiki page for ADDRESS needs a significant amount of work (see my comments on the Discussion tab). The corresponding help page probably needs work too but let's sort out the wiki page first, and then use that to improve the help page.
If and when you have time, maybe you could have a look at my comments and let me know what you think.
I will carry on reviewing the other Spreadsheet functions.
Regards,
Steve