Most labels generated by Whiplash are in the .zpl format for Zebra printers, meaning you can't see from your file manager what the label looks like.

Shipping Labels

Shipping Labels can be downloaded as .PNG files from Order Details using the "Download Label" button in the "Print Packing Slip" menu.

Free Web-Based ZPL Viewers

Tools like Labelary make label viewing trivial and do not require a login or download. Upload your label to their website: http://labelary.com/viewer.html

You can also open .zpl files in a text editor.

Related Questions:

What format do most labels generated by Whiplash have? 

Can you download a Shipping Label as a .png? 

How can I view a .zpl file?