Learn the difference between Excel COUNT and COUNTA, plus TEXTBEFORE and TEXTAFTER tricks, so you clean text and totals with confidence.

Messy Excel formulas are more than just an eyesore—they're harder to maintain. Every repeated cell reference and tangled ...

Many use Excel for basic tables, but you need to go beyond simple sums. If your formulas are getting clunky, conditional functions are the smarter, hidden-in-plain-sight option. They handle complex ...

Although there are many functions in the base package of R, sometimes there may not be a function that does exactly what you want. In this case, R allows users to create their own functions and call ...

Sean Ross is a strategic adviser at 1031x.com, Investopedia contributor, and the founder and manager of Free Lances Ltd. Gordon Scott has been an active investor and technical analyst or 20+ years. He ...

Custom functions enable you to add new functions to Excel by defining those functions in JavaScript as part of an add-in. Users within Excel can access custom functions just as they would any native ...

You can create a release to package software, along with release notes and links to binary files, for other people to use. Learn more about releases in our docs.