Comparing two Excel sheets and combining the unique data can be done with the help of macros. There are several macros available for free that can be downloaded from the internet and tweaked according ...

Learn how to use Excel’s INDEX and MATCH formulas to perform advanced lookups and data retrieval efficiently.

Use INDEX and MATCH for simple database queries in Excel The bigger your spreadsheet, the more you need these, which you can combine with SUM, AVERAGE, and MAX to refine your searches.