Error: Unable to access file: D:\filename-disk1.vmdk.
End of OVA file reached while looking for filename-disk1.vmdk.
In order to deploy this OVA I unpacked the files into a new folder using 7ZIP
The result will look like this
You should now be able to deploy the OVA as an OVF
https://cliffcahill.com 
Many thanks, worked for me too.
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