VLOOKUP vs HLOOKUP vs XLOOKUP — Knowing the Difference and Using Them in a C# Spreadsheet
VLOOKUP, HLOOKUP, and XLOOKUP look alike, but they differ in which direction they search, how you point at the value to return, and what happens when nothing is found. This guide sorts out the differences with tables and examples, shows why XLOOKUP fixes VLOOKUP's weak spots, and demonstrates how ReoGrid (supported in V4.5) runs the very same formulas inside a WinForms / WPF app — no Office required.
