how do i reformat a WD My Passport Ultra for my mac book air running the Mac os mojave
i have just bought a WD My Passport Ultra 1TB hard drive to use on my 2018 Macbook Air running the latest Mac Os Mojave System. up until now i have only used an Ipad Pro so I am still finding my way around this macbook. let alone how i go about reformatting this new external hard drive. can anyone advise me on reformatting this WDPassbook Ultra?
MacBook Air 13", macOS 10.14