Marksmanship Sniper/Sharpshooter Gunslinger Compendium

[Frenchfriar]

Been lurking , reading the feedback here and was attempting to try my hand at utilizing the spreadsheet but i keep getting a message telling me the visual basic for applications macros are corrupted and have been deleted, so i cant run any of the calculations.
has anyone else run into this issue? i am using excel 2007 with the latest updates.
i can plug in all of the other data, but i get that error when trying to enable macro's.

thanks for any help