Hello,
VHDX is Hyper-v disk format.
Solution 1 : if Hyper-v host is available or if you can create a virtual hyper-v host, then you can create VMs from these disks and then use VMware Converter to move them in VMware environment.
Solution 2 : you can use qemu-img https://cloudbase.it/qemu-img-windows/ to convert VHDX to VMDK and then create New VMs from the VMDKs.
KODU if you find my answer useful or mark as solution if your problem is solved.