How-To Geek on MSN

Excel's UNIQUE function can't skip columns—unless you use this trick

Nest CHOOSECOLS inside UNIQUE to extract non-adjacent columns, and use INDIRECT for interactive header dropdowns.
How-To Geek on MSN

Stop removing duplicates in Excel: The UNIQUE function is safer and dynamic

Upgrade from static snapshots to a live-updating system that handles complex repeats with ease.