To create a zip folder:
- Right-click your main folder.
- Select Send To… -> Compressed (zipped) folder.
A compressed folder with a .zip extension has now been created.
NOTE: If a message from Windows asking to designate Compressed (zipped) Folders to handle all .zip files, select Yes.
To open a .zip folder:
Double click it with the left mouse button. It acts just like a normal windows folder.