Macros are powerful, but they don't work on the web or mobile. I’ve switched to the native REDUCE function for my complex ...

LAMBDA defines the custom logic, and SCAN moves that logic through your data range.

How to automatically fill increment cells in Excel using the Autofill function How to automatically fill increment cells in Excel using the formula Interestingly, we don’t even need a formula for this ...

Lindsey Ellefson is Lifehacker’s Features Editor. She currently covers study and productivity hacks, as well as household and digital decluttering, and oversees the freelancers on the sex and ...