Yes, a .CSV file will fit nicely in a spreadsheet. But it will not save avatar photos, notes, birthdays, addresses, etc. Using .vcf will preserve all that extra info most people put in contacts.
Android since v1.0. Linux user since 2001.
Well, I did learn some thing about the export. If you export in Google CSV there is a lot of data which is not included in the export but if you export to Outlook CSV all data is exported except for the avatar. I guess it comes down to personal preference but I would really want to see the data in a format that I can see includes all of the information that I need.