[bananashake]

This works wonderfully.

Definitely the most punch I've seen per line of code.

You can use javascript functions in your excel formulas. In a 30 line of code program this is a feature.

= alert("I love it.");

[hamburglar]

Definitely a cool hack, but I had to laugh out loud at "Excel-like syntax (formulas start with "=")". Apparently the grammar for an "excel-like" syntax is:

excel_like_expression ::= "=" javascript_expression