@sun_ray: No. The library lef file gives the information about the cell pins and the total cell area. It wont give you the idea about the metal routing, functionality of the cell or transistor informations inside it. The library lef cells are black boxes with connectivity information which is the pin information. With this pin information and cell dimensions, the PnR engineer or tool can place the cells in the design. Both the technology lef file and library lef file can be of .lef format. Like Anand told, RECT 0.23 0.33 0.29 0.44 represents the metal layer positioning for the pin.