You are downloading the Door2Door XAP file v18.104.22.168 for Windows Phone. Door2Door is a free and useful Business app: Selling door to door for your local group? Make it easier to keep track of where you've been, the status of each address, and how many sales or ... You can now download the offline XAP file to install & try it.
Download Locations for Door2Door 22.214.171.124 XAP file
Note: To install it manually from an SD card, you should choose one of the server location above to get the offline Door2Door XAP file, move the file to your phone's SD card and then tap 'Install local apps' in the phone's App list.