You are downloading the Calendar APPX file v1.0.15087.0 for Windows Phone. Calendar is a free and useful Business app: Calendar can help keep your life organized with just a few taps. Add meetings and events on the fly, scroll through your schedule with new ... You can now download the offline APPX file to install & try it.
Download Locations for Calendar 1.0.15087.0 APPX file
Note: To install it manually from an SD card, you should choose one of the server location above to get the offline Calendar APPX file, move the file to your phone's SD card and then tap 'Install local apps' in the phone's App list.