INDEX MATCH vs VLOOKUP

INDEX MATCH in 2026. VLOOKUP is harder to read, breaks when columns are inserted, and cannot look up values to the left. INDEX MATCH is more flexible, more readable in formulas, and survives column inserts. The only case for VLOOKUP is reading legacy workbooks you do not own.

Yes for most use cases. XLOOKUP replaces both VLOOKUP and INDEX MATCH with a cleaner syntax, default exact match, no column index number, and built-in if-not-found handling. Use XLOOKUP for any new work in Excel 365; keep INDEX MATCH for legacy workbooks.

On large datasets INDEX MATCH can be slightly faster because the lookup column does not have to be the leftmost column. VLOOKUP scans every column from the lookup to the result; INDEX MATCH scans only the columns it needs. The difference is negligible under 100K rows and noticeable above 1M.

=INDEX(return_range, MATCH(lookup_value, lookup_range, 0)). The MATCH returns the row number; the INDEX returns the value at that row. The 0 at the end of MATCH means exact match. The two-function pattern is the original two-way lookup, before XLOOKUP arrived.

Yes. =INDEX(matrix, MATCH(row_value, row_keys, 0), MATCH(col_value, col_keys, 0)) is the classic two-way lookup. The pattern is the foundation of any dynamic dashboard. XLOOKUP can do this with a single function but INDEX MATCH is still the right tool for some legacy code.

Yes. INDEX MATCH with structured references (Table1[Column]) is the cleanest pattern. The table reference survives row inserts, the lookup column can be anywhere, and the formula is auditable. The senior should use Table1[Column] over A2:A1000 in every new formula.