Any software to help me project future CF/Expenses/Depreciation?

[Taylor Shapiro]

Hi everyone, I just recently got an offer accepted on a package deal for two apartment buildings. 56 units total, stabilized, strong rental town, linear market. They're not "home-run value-add" deals by any means, but as my first apartment building acquisition, I wanted to show my investors a safe(r) property, in our own state, with strong cashflow and favorable returns for their investment. 

Some of my guys are asking for spreadsheets so that we can play around with future rent increases, inflation, expenses, deprecation, etc. to see how it affects our returns. 

Is there a software program that allows us to plug in the basic numbers and manipulate them as needed? I've had a few people tell me excel is the way to go but I'm terrible with these sort of things!