Good to meet old school data processing dudes. Lol.
Giving me flashbacks to my DOS days. Lotus…Dbase…Word imPerfect. Lol
I need to get to the PC so I can drop a file on you.
Not my file but highly recommended!
https://www.rollitup.org/t/understanding-and-calculating-nutrient-ppm.995409/page-4#post-15106516