I love the Comma style. I use for almost all of the numbers in my spreadsheets. I have been using the Number style because I could use Control+Shift+1 to apply that format easily. I doesn’t dash-out the zeros, though. Microsoft at Home says that Alt+apostrophe will take me right to the style box on the Formatting toolbar, and gosh darn it if they aren’t right. Now I can use Alt+’ then C to apply the Comma style to a range.
If you don’t have the Formatting toolbar visible, it opens the Style dialog box.