I guess I gave you the wrong impression or maybe not. My work schedule usually comes in pdf format but, for some reason, it came in .xlsm format. I will try that, but not sure how to make it work. Hope it's a simple process. Here I go. I'll let you know how it turns out.
You should be able to get Apple's Numbers as a free d/l from the App Store, and I'm pretty sure it will open Excel docs (which .xlsm docs are).