If it's for processing circuit boards, just double-click that one. In the menu that appears, the first designato indicates the name of the original object, with resistance and/or repulsion at the beginning of R and capacitance at the beginning of C.. The second line is comment, which indicates the size of the model, such as resistor/capacitor or chip model.

The third line is footprint, which is the PCB package of the device, which is the shape you see. Of course, if you need to know more, you can get familiar with the relevant knowledge of designing circuits first. It takes a process, so take your time.