Allow share as file with custom file extensions

I was trying to see if barcode scanner works on QR codes of contacts and came across this random image on google to demo it on.

Seems like add to contact option only saves 'work' number and does not also include 'cell' number provided in it. If I instead save the same as vcf and open it using contacts app, all parts of the contact are saved faithfully. See scanned content below:

BEGIN:VCARD VERSION:3.0 N:Leon;Sara FN:Sara Leon ORG:Alena ltd TITLE:Co-founder ADR:;;4855, lonely Oak Drive;Spanish fort;AL;36527;USA TEL;WORK;VOICE:86346253 TEL;CELL:+1 672 326 65EMAIL;WORK;INTERNET:sara@gmail.com URL:www.yourwebsite.com END:VCARD

Barcode scanner can allow this by allowing users to share scanned content as file for which we can select vcf extension and have it opened with the contacts app without having to save it.