Hi Sashi,
I tried to attach a Microsoft Excel file, but …

From my perspective it makes sense to not allow .xlsx files in a forum for security reasons. I can send you the file via email if you want to put it somewhere on the evoke endurance webpage for the community to download it.
It is mainly the formulas that are worth sharing. It took me some hours to figure out the solution to the mathematical problem so I hope sharing them saves other people’s time and effort.
And I think it is nice to drift test, without the need for a smart watch, without a training peaks account, without uploading your private data to the cloud, … it is simple to use and on your local laptop. 🙂