Coldsnap download disk.img not getting mounted on linux machine

I am trying to mount an image file which has been downloaded by coldsnap for a snapshot of AWS, but I am unable to mount it in Amazon Linux 2. I Tried multiple commands as mount -o loop disk.img /mnt/disk, losetup -f disk.img && mount /dev/loop0 /mnt/disk but it's not working:

-shellsession
[root@ip-172-31-29-177 ec2-user]# mount -t ext4 /dev/loop0 /tmp/disk/

mount: /tmp/disk: wrong fs type, bad option, bad superblock on /dev/loop0, missing codepage or helper program, or other error.

Can anyone please help me on this error?