Import function of BOM Operation or Routing Tables

When trying to import to BOM Operation or Routing tables I keep getting the below message.
BOM Operation
Import File Errors and Warnings
Column 3 (Operation Time )
Cannot match column Operation Time with any field

Routing
Import File Errors and Warnings
Column 9 (Operation Time )
Cannot match column Operation Time with any field

What is it trying to match column too? I have numbers in the column all the same as my example routings and BOM Operations. Help?

This means that the system is unable to match the column in the excel file to that of the routing doc.

Click on the Match Column button to manually match the columns. They’ll be marked as Don’t Import.

Perfect! Thank-you so much for the help.