Q. What is the CSV format used to upload/download the Address book file? Please download and use the following format. address_book.csv 184 Bytes Download Related articles Q. What is Address book? How do you use it? Q. What is the uploading/downloading of the Address book file? Q. I downloaded and opened my Address book but the text is garbled Q. How many entries can be registered to the Address book at maximum? Q. How do I view the login history?