Looks like one I did 10 years ago. 😁
I tried years ago to upload it to the technical files section, but was not successful. I have emailed it to a couple of folks who wanted it. I did not put as much time into formatting as you did, but basically you enter the current valve clearances and current stock of shims on hand in the “spares” column and the spreadsheet calculates the rest and uses conditional formatting to highlight which valves are out of tolerance, etc.With all the calculations done automatically like the size of the proper shim to correct the gap or calculating what shims to buy if you reuse the old one?
I would be very interested to see it. 😁