Question

What are the steps that Excel performs when the VLOOKUP type is TRUE and key data is sorted in ascending order?

Answer 1

Excel performs binary search to find the closest matching value and returns the corresponding value from another column.

Step-by-step explanation:

When the VLOOKUP type is TRUE and the key data is sorted in ascending order, Excel performs the following steps:

1. First, it searches for the largest value that is less than or equal to the lookup value. It does this by using binary search algorithm.
2. Next, it checks if this value matches the lookup value exactly. If not, it moves on to the next step.
3. Finally, it returns the corresponding value from the same row in the specified column.

For example, if you have a sorted list of student names and you want to find the grade of a specific student, you can use VLOOKUP with the type set to TRUE. Excel will find the closest matching name and return the corresponding grade.