The VLookup function in Google Sheets allows you to combine data from two sheets into one sheet as long as both sheets contain a common search key.
ChatGPT explains it like we're 10: "Imagine you have a big box of crayons with lots of different colors. Each crayon has a name like "Sunny Yellow" or "Ocean Blue." You want to find a specific color, say "Sunny Yellow," and you want to know which number crayon it is in the box.
Google Sheets' VLOOKUP function is like a magic tool that helps you find your "Sunny Yellow" crayon in a big list. You tell it the name of the crayon you're looking for, and it goes down the list (which is like the rows in your crayon box) until it finds "Sunny Yellow." Then, it looks across to the number you want to know (like which number crayon it is) and tells you.
For example, if "Sunny Yellow" is the 5th crayon in the list, VLOOKUP will find "Sunny Yellow" and then tell you "5." It's a super quick way to find information in a big list without having to read every single item yourself!"