A .vcf (vCard) file is how phones and email apps export contacts: iPhone and iCloud, Android and Google Contacts, Outlook and most CRMs use it. It is plain text, but not something Excel or an import screen can read directly. This converter reads every card in the file and writes a CSV with one contact per row.
The reader handles what real exports contain: vCard 2.1 from older Android phones and Outlook (with QUOTED-PRINTABLE encoding and character sets), 3.0 from iPhone and Google, and 4.0; long lines folded across several lines; several phone numbers, emails and addresses per contact with their Mobile, Work and Home types; and iPhone custom labels. Contact photos are skipped because CSV can't hold images. You choose the layout: Google Contacts (columns Google's import recognises), Outlook (named columns such as Mobile Phone and Business Phone) or a clean spreadsheet layout for Excel. You can add several .vcf files at once and remove exact duplicates.
Limits: Outlook's layout has a fixed number of phone and email columns, so extra numbers go into Notes. Groups and contact photos are not exported. Birthdays without a year are written as --MM-DD in the Google and Spreadsheet layouts and left out of the Outlook layout, which needs a full date.