Best Book for an Investment Banker to Learn Excel

I'm going to be starting my career shortly as an i-banker (~in a month) and, as much as it pains me to say, I definetly don't feel as though my knowledge of Excel is where it should/needs to be.

What are some good books for someone who is relatively unfamiliar with Excel? I have about a month until I start and really want to get on it. I already picked up a macros book and have been playing around with that, but I am running into some problems as my knowledge of Excel is not that great.

I've been reading some bad reviews about "Microsoft Office Excel 2003 Step by Step" and was hoping someone would recommend some others. BTW, I am using MS Office Excel 2003. Does it even matter if I pick up a book that was designed for an earlier version? Also, I'd like something with an interactive workbook type of thing, if possible.

Any and all advice would be greatly appreciated.

Thanks!

hi

it does not really matter if you are reading earlier version of excel book, i suggest that you go through book "Mastering Excel" its gives you very detail and comphrehensive knowledge about excel with sample problems.

regards
digvijay