Hi ,
im new to proxmox and i use version 7.1
in order of importing a VMDK to proxmox,
i followed this - https://pve.proxmox.com/wiki/Migration_of_servers_to_Proxmox_VE
especially this :
qemu-img convert -f vmdk /mnt/usb/windows-server/windows-server.vmdk -O qcow2...