To add fields to a template, you must first have created a template. To add fields to an existing template, follow these steps:
Log in as Administrator to the back end of your Joomla! site
Navigate to CSVImproved, by going to Components>Virtuemart and then clicking on Products, which will expand and show CSVImproved usually as the first option.
Click on Templates to find the template you wish to alter the fields for
Ensure the radio button is selected next to the template you'll be editing
Click on the blue & yellow “Fields” button in the top right of the page
Enter the field order number (i.e. what position you want it to take in the spreadsheet
Select the field name you wish to use
Enter the text you wish to appear as the column header
Enter a default value (if required)
When you're happy, click on the green tick to the right of the editable boxes, which adds the field to the template, and creates another blank one for your next field.
Remember to click on Save when you're finished!
To delete, simply click on the delete button to the right of the published button in the list of fields