Do you have years worth of events in your Windows PC and you want to transfer those to Android Phone or iPhone? This post describes you how to export  outlook calendar events to a single file and can store as back up or use with other calendar applications. You can transfer all your outlook calendar to Google or iCloud Calendar and keep update with your Android or iPhone Calendar. You can even use this method to backup your outlook calendar.
Open your MS Outlook and select Calendar from left sidebar. Please make sure your desired calendar is checked in.
Now go to File > Save Calendar. This will guide you to the next Window to save the Calendar.
Instead of saving the calendar directly, please click on ‘More Options’ button. You will get the options windows like the screen shot. Please make sure you set the options to,
Date Range: Whole Calendar
Detail: Full Details
Click OK to go back to the save file.
Now you have your Outlook calendar as handy in one file, you can use this file to back up your calendar or you can import to Google Calendar for your Andrid phone.
This post show you how to import Calendar to Google Calendar. This is useful if you are looking for moving your outlook calendar to Android Phone.