Slow lookup formulas can kill productivity when working with large datasets. To cope with that, I've tested Excel's optimal lookup functions and their combinations for building lightning-fast ...

Highlighting or even deleting duplicate records in Excel is simple but listing them isn't as easy. Fortunately, you can use Power Query to easily display a list of duplicate values or records.

The VLOOKUP () function will return the correct stipend for each location record. A data validation control will restrict input to specific sites, avoiding typos and invalid sites.