3827773 - How do I know the Column name for a Custom field in employee form?

I could not determine what the field is related to one or more columns of the employee import file. Where can I find information about the field I should fill in for each column of the import file?

How to check the column name of a custom field in employee form? , KBA , CON-CA-TLS-IEM , Import / Extract Monitor , CON-CA , Cross Applications , CON-CA-ADM-USR , User Administration , CON-EXP-ADM-FOF , Forms and Fields , Problem