VLOOKUP — Combine Matched Columns from 2 CSV Files
1. Upload Main CSV
This is the file you want to add new matched columns to.
2. Main Match Column Index
Example: if columns are ID, Name, Age, then ID = 0, Name = 1, Age = 2.
3. Upload Lookup CSV
This is the file where matching values and return columns will be found.
4. Lookup Match Column Index
Use the matching ID/key column from the lookup CSV.
5. Return Column Indexes
Enter lookup CSV column indexes to append to the main file, separated by commas.
Run VLOOKUP