On the Xiaomi smartphone, we can import contacts from a variety of sources, including VCF files, the SIM card, or other accounts, and we can choose to store them on the phone memory, Mi account, or Google Account.

Android 10 (MIUI 12.0)
Step 1:  Open the  Contacts app
Step 2:  Open the  menu
Step 3:  Tap on  Import/Export contacts
Step 4:  Choose  Import from storage  or  Import from SIM card 1 / 2
Step 5:  Choose an  account
Step 6:  Choose  Import 1 vCard file ,  Import multiple vCard files  or  Import all vCard files  and tap  OK
Step 7:  Choose a  vCard file
Step 8:  Tap on  OK
  1. Open the Contacts app
  2. Open the menu
  3. Tap on Import/Export contacts
  4. Choose Import from storage or Import from SIM card 1 / 2
  5. Choose an account
  6. Choose Import 1 vCard file, Import multiple vCard files or Import all vCard files and tap OK
  7. Choose a vCard file
  8. Tap on OK

Xiaomi Instructions