Lol. Fine. Now I'm going to maintain two versions. I guess there are ways I can make my updates without active elements (e.g. enter "1" for option 1, "2" for option 2, etc), but that's no fun, lol.
Here is a version free of active elements. I'm calling it "Neurosphere's 2020 Shared Social Security Benefit Estimator v2". 2020 refers to the fact it's valid from Oct 2019 through Oct 2020. "v2" is version 2, which I will update as I go based on suggestions/problems etc.
Here is version with radio buttons where one can toggle between various assumptions for price and wage inflation, which I think is a VERY COOL feature (imho).
Note that there is currently no way from me to test my calculator against SS's numbers and I make no claims about accuracy (i.e. anypia has not yet been updated). The online calculators are not yet updated either, but these do not take non-zero inflation assumptions into account anyway, so provide limited testing. I have not yet done any troubleshooting or stress testing. Consider this a beta version (or zeta version, lol).
The links above should allow one to download the calculators from one drive. I've created these in whatever the current version of Excel is. They are saved as .xlsx or .xlsm files. I'll admit I won't have much interest/time in making these backwards compatible with previous versions of excel, or ensuring they work in non-excel spreadsheets. Microsoft 365 costs $70/year. I don't have the patience/time to make this hobby/fun project into a chore/obligation. Hope that doesn't sound too mean.
Hopefully a few of you can kick the tires, and at some point I'll create a new thread to announce it. I'm also hoping to create a video walkthrough, to show how to use it and point out what I think are some of the cool features.
[Edit to add: Crap. It seems I didn't update from the latest version I had. My bad. So while the links above will go to valid calculators with numbers which I think are correct, the layout and some previously added features are altered/lost. I'm going to work on updates, because I think the previous valid version was a little more user friendly and looked nicer. Dang.]