To perform an XLOOKUP with multiple criteria exact match, skip brittle helper columns and use boolean array logic. Multiply your criteria ranges together to generate an array of 1s and 0s, and lookup … Read more

Select your date column. Navigate to Home > Conditional Formatting > New Rule > Use a formula to determine which cells to format. Assuming your first date is in cell C2, paste this … Read more

To calculate progressive tiered commissions, abandon brittle nested IF statements. The most efficient, error-free method is using SUMPRODUCT with differential rates. Assuming total sales are in cell B2, tier thresholds in E2:E4, and … Read more