Intro to me

I just recently retired from the military where I used Excel for fairly basic formulas and now have ascertained a civilian job where excel is used heavily. Comparing several thousand lines of dates so I'll be fishing through here seeing if any past users have had to do similar stuff. Excel is somewhat limited from what I'm hearing, so I want to start learning VBA to write macros to pin-point certain overdue dates and dates that are coming due. So thank you to all of you who have posted previously, a bit overwhelming to look through all the complex issues that some have been working on :-)