Q for guys who create Excel sims

[basementproject]

Greetings all- lurker here popping out of the woodwork.

I've got a fairly accurate MLB moneyline system going in excel, and it's gotten pretty self-sufficient. Given that, I want to start having some fun, programming simulations.

What would be the best/most efficient way to go about creating sims on a computer? I'm highly experienced in HTML and JavaScript, dabbled in PHP, took a course in Turing... Which language would you reccomend learning next?

Thanks for the input.