to increase the computer's efficiency
Explanation
The more files it holds, the more "jobs" it has to run, which means that you're computer would be using the same amount of energy running all of them as to less of them. When you close (or delete) some files, it allows the computer to concentrate on only running a smaller amount of files as oppose to a large amount.
hope it helps!
Answer:
To increase the computer's efficiency.
Explanation:
Having a bunch of files will most likely slow down your computer and make things harder to do. If you don't have a bunch of files, though, your computer will be faster and easier to guide through.
I hope this helps :)