Currently, these are predictions of weather melee weapons will be deflected by armor based on the wild speculations that
1) Melee weapons behave exactly the same as projectiles (only their momentum determines if they penetrate armor)
2) Weapon momentum is just the weapon mass times the velocity multiplier

The spreadsheet calculates the momentum of the weapon following (2), and then compares this with the momentum at which a given armor will stop 50% of projectiles. If the weapon momentum is significantly larger, the cell is colored red (expect 100% penetration). If it is smaller, the cell is colored green (expect 100% protection). If they are close, then the cell is left white - the exact behavior could be anywhere from 0 to 100% protection, and depends on details like armor user skill and armor quality. Note that "protection" means that the blow is either deflected or reduced to only bruising skin, fat, or muscle.

Again, this is purely speculative. If I ever get around to working out what actually occurs I will replace this.