Users may convert virtual machines from one virtualization platform to another (like Parallels Desktop to VMware in this case), but for doing so you will need all of the files that make up the virtual machine, not just some of them. In order to successfully convert you really need all of related the files, which include at least the virtual machine file, various configurations and virtual disks.
Convert Parallels Desktop virtual machine file to VMware configuration file.
We found one software available in the database for this conversion.
Apple macOS / Mac OS X software - convert pvm to vmx on OS X
Program used for migration of Windows PC to Mac
Convert from pvm file format
The table with program actions contains information about what each program is capable of doing with their files. This may be a good pointer for further searches for certain file conversions and help you find the converter you are looking for if our search result is insufficient for you. However, it is far from perfect and may sometimes show results which are not really usable because of the nature of the software handles the files. So a conversion that appears as possible, just because of matched actions, may in fact not be possible.