Hi Andy,
The file type being displayed in File Explorer is affected by the default program association of the file. In this case, we reproduced the issue on our end and found out that if both .vcf and .vcs files are associated with Outlook, it does indeed show the wrong file descriptions. Both files are not affected and can still be opened normally using Outlook.
However, if you change the associated program with the .vcf file to the People app, it'll show VCF file instead, as can be seen below:
If you change the associated program to Windows Contacts, the file description changes to VCard file:
Lastly, if you change the .vcs file association to Notepad, the file description changes to VCS file instead of vCard file:
You can change the file association by following these steps:
- Right-click the file and choose Properties.
- Click Change and choose a different program.
- Click Apply.
- Click OK.
If the files can be opened properly by your preferred Mail/Calendar program, you can continue using it. Our developers and engineers would definitely benefit from learning about wrong file descriptions that you encountered with Windows 10. We encourage you to submit this using the Feedback Hub so that they could consider correcting this in a future update.
In order to submit new feedback, please follow these steps:
- On a Windows 10 device, search for “Feedback Hub” in Cortana search, then launch the app.
- Navigate to Feedback in the left menu, then press + Add new feedback.
- Select the Problem, and share any details you think are relevant, and choose an appropriate category and subcategory.
- Important: If possible, reproduce the problem(s) after clicking Begin monitoring (or Start capture) near the end of the form; Stop monitoring when you’re done.
- Once you’ve completed the form and monitoring, click Submit.
- Click Continue using Feedback Hub.
- Click My feedback at the top, then find the item you submitted (it may take a while to appear).
- Open the item you submitted, then click Share.
- Click Copy link, then paste the link here in your response (it will look like https://aka.ms/<unique link>).
Let us know if you need further assistance with your computer.