I am brand new to my cnc so purchased a couple files and tried to import them into CC and when i open them up there are 3 of items and Im not sure why can anyone tell me what Im doing wrong and how to fix it
Carbide Create imports DXF and SVG files (and of course opens its native C2D format).
Pixel images may be imported to be placed on a background layer to be re-drawn, or image traced: Carbide Create - Image Tracing
If you have a Pro license it is possible to import STL files to add them to the 3D model, or pixel images may be imported as depth/height maps. For STLs see:
Another suggestion for STL files would be to examine them in another program first to ensure they are what you are expecting, I currently use Meshmixer and another CAD program.