Zip & Unzip
a) Zip
  1. Tap to enter Organize Mode
  2. Select the files
  3. Tap the zip button
  4. Enter the password if you want to protect your files.
    Leave it blank to zip without password protected.
    P.S. Protected zip file may only be extracted by an iPhone. It may become corrupted when extracted by using a computer.
  5. Click Done
  6. The zip file is created.
b) Unzip
  1. Open a zip file
  2. Tap and then select Extract to ...
  3. If the zip file is protected, you need to enter the valid password.
    Please leave it blank if no password protected.
    If you enter a wrong password, the files will be corrupted.
  4. The files are unzipped in a folder.