Mass update expiration dates via CVS import or other method

I need to update many user's subscriptions (extend). I tried export CSV file, updating, and importing again but that doesn't seem to update current records. Is there a way to batch or mass-update this without clicking into each subscription, and without going directly into the database?

The easiest way would be run an SQL command to update the data if all subscribers you want to update have same expiration date.

Thanks. I used "Regular Labs - DB Replacer" to do it, and then later mucked around in SQL just to verify.

OK, great. I'm glad you had it sorted

Tuan