Actually guys..After asking the question..I solve it myself..If you select a file..You'll see 3 small dots in the upper right corner of the file..click on it & you get a menu..one option is "Delete"  I tried it..& it works..To the sponsors who created the site..Thank You..It works flawlessly/Juan

I would add that the site does a wonderful job at downloading..It has worked smoothly..absolutely perfectly..I would just like to be able to delete a file from time to time & don't see a way to do it..Even if this can't be solved..It's still a great program/site & works great.