I have incremental backups at Atlas MongoDB cluster Cloud Backup. I need to check some data from the past. I’ve downloaded a big file with wiredtiger structure, but don’t know how to open or use it.
Hi @Mirko_Geest - Welcome to the community 
I have incremental backups at Atlas MongoDB cluster Cloud Backup.
Can you clarify if you mean you have Continuous Cloud Backups enabled?
I’ve downloaded a big file with wiredtiger structure, but don’t know how to open or use it.
Additionally, could you confirm the process you used to download the file you’ve mentioned and the file extension? I presume it would be the .tar.gz file but please advise.
In saying so, you may find the Restore a Cluster from a Cloud Backup documentation useful. More specifically, for the downloaded backups, please check out the Manually Restore One Snapshot procedure.
Regards,
Jason