All Knowledge is Contained in Fandom, Day-Job Edition

So, over the summer I scored a new Mac at the day-job, which is not quite as satisfactory as it could be, since it came with the Monstrosity that is Microsoft Office-X. All of the bad things I thought and said about Microsoft Office 97? I take back. Pass the salt.

So, today's problem!

For some reason, the Big Blue Smurf think that single space means "space-anna-umpf," which not only is ugly, but *really* makes it hard to do things like, oh, merge labels. We here in the Control Cabin live and die by merging labels.

Now, I know I can go up into Format, choose Paragraph and turn Spacing After from 10 to 0. The trouble is, I seem to have to do this for EVERY FREAKING LABEL. Which is this case is only a couple hundred, but still -- every instinct rebels. Not to mention my wrists.

Anybody know how to turn this off Forever and Ever and A Day?

Abundant Spanish Aunts.