import csv
data = {"alex(A2)": "alex@email.com(B2)", "alice(A3)": "alice@email.com(B3)"}
with open('d:\data.csv', 'w') as csv:
columnsTitle = "name(A1), email(B1)\n"
csv.write(columnsTitle)
for key in data.keys():
name = key
email = data[key]
row = name + "," + email + "\n"
csv.write(row)
'''
run:
data.csv
--------
name(A1), email(B1)
alex(A2),alex@email.com(B2)
alice(A3),alice@email.com(B3)
'''