links're all die when open an powerpoint format
I have a file with format powerpoint from my teacher, i can still open it with some changes, but unfortunately, all the links are died, whenever i click on the link, it open safari... please show me how to solve it, I've just used Macbook recently. Thanks all.
MacBook Pro (Retina, 15-inch, Mid 2015), OS X Yosemite (10.10.5)