This file is capable of exporting the entire physics parameter files for the Formula ISI 2012 car (minus tyres). To be more specific, these files correspond to the HDV, engine.ini, gear.ini (optional), damage.ini and ultra chassis.ini. There is also a headphysics.ini output, but this is purely graphical (cockpit camera) and does not alter the vehicle physics.
It requires LibreOffice.org 4.2.7+ (recommend 4.3.7) available from here.
Once you have that installed, you can open the file. The spreadsheet does use some macro's (although most of them are non-essential and you can use the spreadsheet without them).
