To restore any of these databases to MongoDB, you'll need to uncompress them and then run this command:
mongorestore --drop --db DATABASE /path/to/unziped/dir
If you are using an authenticated connection on another server, this more verbose version is required:
mongorestore -u admin -p <mypassword> --authenticationDatabase 'admin' --ssl --host <my_hostname> --sslCAFile mongod.crt --sslPEMKeyFile mongod.pem --drop --db DATABASE /path/to/unziped/dir
Note this references this two MongoDB certifications for connecting. You can altermantively use the --sslAllowInvalidCertificates flag to ignore them.