1. Yes, download VM Folder to Local machine. Run this VM in Workstation.
Creating a Workstation virtual machine using existing VMDK virtual disks (2010196)
http://sostechblog.com/2011/03/30/moving-vms-from-esx-to-workstation/
2. V2V to ESXi using VMware converter Standalone tool.
Post if u need more details.
Regards
Pankaj