# Lost all my cards! **URL:** \ **Category:** Help\ **Created:** [January 13, 2021, 10:55am UTC](https://forums.ankiweb.net/t/lost-all-my-cards/6485 "2021-01-13T10:55:00Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![Fianna](https://avatars.discourse-cdn.com/v4/letter/f/13edae/32.png) [@Fianna](https://forums.ankiweb.net/u/Fianna)\ **Post date:** [January 13, 2021, 10:55am UTC](https://forums.ankiweb.net/t/lost-all-my-cards/6485/1 "2021-01-13T10:55:00Z")
Hi, I downloaded the new update yesterday onto my Mac. Went fine. When I now go to open Anki, it is saying its unable to open my collection file. I logged onto Anki web, and my decks have not updated so I’ve lost three months work! Could anyone please help ---
**Author:** ![kj0202931](https://avatars.discourse-cdn.com/v4/letter/k/f1d935/32.png) [@kj0202931](https://forums.ankiweb.net/u/kj0202931)\ **Post date:** [January 13, 2021, 9:46pm UTC](https://forums.ankiweb.net/t/lost-all-my-cards/6485/2 "2021-01-13T21:46:08Z")
The manual has a section on how to recover automatic backups, maybe this could help. ---
**Author:** ![dae](https://sea2.discourse-cdn.com/flex002/user_avatar/forums.ankiweb.net/dae/32/65_2.png) [@dae](https://forums.ankiweb.net/u/dae)\ **Post date:** [January 14, 2021, 4:14am UTC](https://forums.ankiweb.net/t/lost-all-my-cards/6485/3 "2021-01-14T04:14:26Z")
Please see [Restoring an Automatic Backup (Recovering from Data Loss) - Frequently Asked Questions](https://faqs.ankiweb.net/restoring-an-automatic-backup-recovering-from-data-loss.html) ---
**Author:** ![system](https://us1.discourse-cdn.com/flex002/uploads/anki2/original/1X/8f1279ababc5879d54e4838989f606cfe55af8c7.jpeg) [@system](https://forums.ankiweb.net/u/system)\ **Post date:** [May 1, 2023, 5:17am UTC](https://forums.ankiweb.net/t/lost-all-my-cards/6485/4 "2023-05-01T05:17:47Z")
Closed on May 1, 2023, 5:17am UTC