I ran across this Office 365 infographic on the Evoke IT blog the other day. It does a nice job of summarizing what Office 365 is, all the pieces that make up Office 365, and describes each piece. If you are not familiar with the software you can always attend microsoft office excel training. The software has become a massive contributor to everyday runnings in both business and personal lives. Improving your skill set will ensure that you are keeping up with current trends ensuring that you remain employable. The software is most likely favoured due to its versatility.
For example, Office 365 can be your office from anywhere. If you have a Wi-Fi connection or phone coverage you are literally a click away from everything you need.
With SharePoint and Cloud functions you are able to store, share and sync data with everyone who has security permissions.
You can manage e-mails, calendars and events, you can edit files, you can access client information and you can do so on any device from anywhere.
Those are just a few things you can do with Office 365. Check out the infographic below (reprinted here with permission) for more details: