Why can't I open the software in Mac after downloading it?

Here are a list of possible reasons for your problem and their solutions:

1. You have downloaded the file ShopNCook.exe: ShopNCook.exe is the software for Windows. You must download ShopNCook.zip . If you don't have the correct file, go to the download page and select the version for Mac OS X.
2. ShopNCook.zip did not expand automatically into the file ShopNCook.dmg: Double-click on it to expand it.
3. ShopNCook.dmg was not mounted automatically  as a volume: double-click on it to mount it. When it is mounted, a new window displaying the content of the volume is opened. If it still doesn't mount, find the application Disk Copy in your Applications folder and drag the file ShopNCook.dmg onto it.

Once the file ShopNCook.dmg is mounted, drag and drop Shop'NCook software to your Applications folder.