Issues With Placement of Parts in Toolbox

I am trying to configure my Toolbox by adding files to the folders through Windows Explorer. I located the Solidworks Toolbox Data folders and I am trying to cut and paste my part files into my toolbox folders. When they are in they show up in Windows Explorer, but they do not show up in the Toolbox in Solidworks. Even if I go through Solidworks to add my part to the Toolbox folder I created, they still do not show up. What am I doing wrong?

SolidworksToolbox