I use csv import function in the desktop version of google contacts and walk you through it step by step.
Just go to contacts.google.com to start, press Other and Import in bottom left sidebar, select CSV, switch to old contacts, on the left, press import contacts, select your file and wait briefly, notice a new group in the left sidebar. click it, confirm the entries are correct and delete all contacts in that group if they are not, then fix the headers of your CSV file and try again. GOOD LUCK, LIKE AND SUBSCRIBE WHILE YOU'RE AT IT!