You are downloading the WP Calendar XAP file v18.104.22.168 for Windows Phone. WP Calendar is a paid and useful Productivity app: WP Calendar enables you to manage the calendars synchronized with your Windows Phone. You will also have access to customizable live tiles and ... You can now download the offline XAP file to install & try it.
Download Locations for WP Calendar 22.214.171.124 XAP file
Important Notice: Now Due To Unspecified Limitations, You Can Not Use The Offline XAP File To Install It Any More.
To try to install it manually from an SD card, you should choose one of the server location above to get the offline WP Calendar XAP file, move the file to your phone's SD card and then tap 'Install local apps' in the phone's App list.