VLOOKUP in simple words
VLOOKUP searches the first column of a selected table and returns a value from a column number you specify. It is familiar and widely used, but it can break when columns move or when the return column is to the left of the lookup key.
XLOOKUP in simple words
XLOOKUP searches one selected range and returns from another selected range. It is easier to read, supports a custom not-found result and can return values from either side of the lookup key.
Which is safer for business checks?
For new worksheets, XLOOKUP is usually safer. For older Excel versions, VLOOKUP is still useful. For management reconciliation, formula choice is only one part of the job; you also need duplicate checks, missing-record tabs, action sheets and export logs.
When VLOOKUP still works well
VLOOKUP is fine for quick one-way matches where the lookup key is in the first column and the table structure is stable. It is commonly used for simple employee-code to email or serial-number to owner lookups.
When to move beyond formulas
When you need to compare two full files, find missing records in both directions, detect duplicates and explain the outcome to non-technical users, a guided reconciliation workflow is better than a single lookup formula.