Where is the Export function?

[TTCC5511]

I used to archive my e-mail in .eml format using Thunderbird's export function.
It is not "Save as..." it's a function that exports all select mails at once AND prefixes them with a timestamp/date.

I don't find this function in current version.
Where is it now ? Or is there a plug-in or something ?


Thank you

[DanRaisch]

That was done through an extension - Importexporttools

[mgagnonlv]

The original extension doesn't go beyond TB 60.

Use ImportExportTools NG instead.