HELP! Creating a calendar using Excel data

[kesvolunteers]

So I have about 7 calendars of schedules that I want to combine into one without having to retype/enter all the info. SO I created a 'master list' of all the dates and descriptions and want to just export that into a master calendar and/or just be able to filter the data I want/need into a calendar also. Does that make sense? Is it possible? So, I have three columns: date/time, description and catagory. I want to see a calendar of all 7 catagories. Then I want to be able to see a calendar of just one catagory or just a few select catagories. Please help, this is for my children's school and trying to get all the info in one place instead of all over!! Thanks in advance for any help, I really appreciate it!!