without mouse..............?

It is certainly not impossible. I have worked with the keyboard alone when my mouse was damaged. You got keys for every mouse action. For example press alt now and it would automatically highlight file. Then use arrow keys and so on. It is not that hard. Mouse is much more convinient.

yes, i prefer doing my work with my mouse. If my mouse is not working and i really need to some work to be finished, i used some keys and controls codes using my keyboard like the control + alt + delete if i want to shutdown my computer or some programs is not working, the windows button in the keyboard to open up some program and many others.