Here's the Battle for the Underdark update to my Heroscape Spreadsheet.
I have changed the database/figure tracking system a bit. Now, if you input the number of copies of each set you own on the "Wave Identification" sheet it will automatically update the figure count on the "creatures" sheet. For example, entering a 1 in cell H2 of sheet "Wave Identification" automatically calculates the number of figures in the "# figures I have" column on the "creatures" sheet.
I also updated the FAQ tab with information from the FAQ version 9.4. Unfortunately, the Special Powers Tab and FAQ tab no longer link to the characters. If i figure out a way to permanently link those together I'll redo that, but Excel was munging up everything...