I am using v0.33 of the spreadsheet with LibreOffice 5.4.7.2 On the "spring" tab when I look at the dropdown for the rear spring (B34) it only has "0" as an option. If I copy the cell from B10 to B34 I can properly select a dropdown value. Also, in North America, it's quite common to have springs in "k", which is usually short for kg/mm. In my case my SC300 has 17k front and 13k rear springs. My guess is that I should be using the conversion value kgf/mm = 9806.65 A 17k spring here would correlate to a N/m rate of 166713.05. The spreadsheet has pretty big gaps in values. It goes from 164000 to 168000. This represents 16.72 - 17.13k. Is there a reason the spreadsheet doesn't take arbitrary and/or decimal values?
I think I'm answering my own question: Starting on Row 65 there are some spring configurations. You can change the unit to kgf/mm You can change the min/max values You can change the steps The values in the dropdown (B34/B10) don't end up getting updated to the stepped values, though. They're still showing the calculated SI N/m values, which is not fun.
