Home How-to Articles Version latest (3.1) 3.1 3.0 2.5 Qastor How-to Articles How-to Convert ENC charts to Qastor 3 formatHow-to Handle S-63 Encrypted ChartsHow-to Upgrade a Dongle/Softlock - Qastor 3.0How-to Upload charts to IOS devices using the Apple Files appHow-to Upload charts from Windows to iPad using iTunes