Can anyone help me with a formula to adjust the partnumbers in the 2nd column to the format in the 1st column? I've used text to column and some text string formulas on the 2nd column but I'm not getting close enough to the format in the 1st column to reduce the number of manual adjustments I need to make. A succesful match would be confirmed by a vlookup between 1st and 2nd column. The number of errors would need to be minimal. The errors (mismatches) would need to be corrected manually.