How to change the date format for 2 columns as mmm-yyyy by ignoring other data in the column

how to change the date format of huge data for 2 columns as mmm-yyyy by ignoring other data in the column
if the column contains data other than date it should ignore

@anjani_priya
can you create a sample excel and share

@anjani_priya

Can you create a sample excel

Book1.xlsx (1.4 MB)
the line items in original file are 1,25,000…

Book1.xlsx (1.4 MB)
the line items in original file are 1,25,000

can you share solution

@anjani_priya

Please check on below post

Cheers!!