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In order to better identify a column, you can rename it.
You will rename the two columns previously created and give them a meaningful name. Those
new columns will be used to create the local part of the email addresses.
Procedure
Click the column you want to rename, first_name_copy in
this example.
Perform one of the following actions:
Double-click the name of the column.
Use the Rename column option in the column
contextual menu.
Enter email_first_name as new column name and press
Enter to apply it.
Repeat these steps to rename the last_name_copy column
as email_last_name.
Results
The selected columns are renamed.
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