BTW, I think, believe it or not, I'm going to go with VI Export Jobs. They seem to be the easiest to create, easiest to rerun and re-edit and produce the most useful output.
That being said, as @DanBurleson mentioned, the default using Crystal to Export Excel sucks because you are limited to the amount of columns you can fit across the printed page in your export. If you wanted to export every column of the AR History Detail, it ain't ever gonna fit on a Crystal report in one row...
However, I figured out a nice workaround. Use something like PDF995 (free), and set a custom print size of 200"" (its max) and you have lots of real estate. That being said, AR History detail equaled something like 500"" of paper so I found an option in the PDF995 printer setup called 'scaling' which shrinks everything printed. I set it to about 40% and got the equivelent of a 500"" wide piece of paper, more than enough to get every field, including UDF's to fit in a row and thus export nicely with column names.