Some things on the website are popular while others are not. That's how all websites are.
Apparently, the spreadsheet I wrote 20 years ago, "An Excel spreadsheet for tracking your stock purchases" at https://www.dripinvesting.org/tools/tools.asp is one of those things that is not popular because I just got an email from someone who found an obvious bug in the spreadsheet. <g>
That was, as noted, something I put together literally 20 years ago (the example companies had their prices in fractions instead of decimal) and one I have not used in a long time. Instead of fixing the issue, I have uploaded a version of the one I currently use.
So if you are looking for a spreadsheet that can be used to track your DRiPs then click on the Info/Tools/Forms link toward the top of this page and use the "An Excel spreadsheet for tracking your stock purchases" link to grab it.