Oh, interesting! I tried it in Word on macOS but didn't get it to work. But it works in the browser (question mark = calculates check digit). It uses this, whi

Oh, interesting! I tried it in Word on macOS but didn't get it to work. But it works in the browser (question mark = calculates check digit). It uses this, which i have no idea what it is :-) https://learn.microsoft.com/en-us/typography/opentype/spec/features_ae#tag-calt https://learn.microsoft.com/en-us/typography/opentype/spec/f...