How to import multiple contacts vCard VCF file into Outlook?

After many tries with different 3-rd party software this workaround did the job just fine and simple:

1. Import file (from leftside menu "Import contacts") to Google Contacts https://contacts.google.com/ in a group named "Imported [date]" is automatically created
2. Export (from top menu "More") "Imported [date]" group as Outlook CSV format
3. Import it to Outlook: File/Open/Import/Import from another program or file/Comma Separated Values/ Choose source file/Choose destination Outlook folder/Finish

Note that Outlook failed to open the CSV file until I removed some contacts with Chinese characters.

I found an ok but not great solution to importing multiple *.vcf files into Win10 Outlook 2017 which does not require a plugin (but is a little mandrolic).

1. Open up your contracts in outlook's
2. Select all the contracts you want to import in the folder
3. Drag and drop these contracts files onto Outlook's contact area
4. Outlook will open each contact and you need to close each one click "yes" to saving the contents

It's a bugger closing and saving all the contact windows that pop up. But it work well for my 50 or so contracts and didn't require me installing any third-party extensions.