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One of the easiest IMO is to actually have a real schedule in Outlook calendar then export them to excel or just for presentation a calendar is easy to create and customise etc etc in excel.
 
LaTeX is a great option. There are a lot of packages to typeset schedule-like data. Tikz calendars package is a good example.
 
Have you checked through any of the free templates for Excel? Microsoft has their own, plus several sites have a lot of ones made by others that are free to use. I generally use one of the basic ones from here, since the formulas are already configured...
https://templates.office.com/en-us/Schedules
 
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