Sorry Michael, I'm guessing the explanation of my query sucked. Here's a clearer version:
I've installed your extension (thank you), so my client can export some fields into a database for marketing. However, when exporting a CSV file from the 'Database' tab, there are numerous headings the client will not want.
Ôªø"Submitted" _wpcf7 _wpcf7_version _wpcf7_unit_tag _wpnonce your-name your-email
I wanted to customise which headings were exported (and/or showed up on the Database tab) so only useful columns were exported (such as name, email & phone number). Others were ignored.
I had thought the Database Short Code page was for customising this, but from your explanation it may have another function.
Is there a simple way to customise which fields appear in the Database, and thus exported?