You are downloading the Photo Grid Mixer AppX file v220.127.116.11 for Windows Phone. Photo Grid Mixer is a free and useful Lifestyle app: Create awesome looking collages made in your own style. Here you can add selected photo with your choice of photo shape and size.Photo Mixer ... You can now download the offline AppX file to install & try it.
Download Locations for Photo Grid Mixer 18.104.22.168 AppX file
Note: To install it manually from an SD card, you should choose one of the server location above to get the offline Photo Grid Mixer AppX file, move the file to your phone's SD card and then tap 'Install local apps' in the phone's App list.