You are downloading the Posit XAP file v1.1.0.38 for Windows Phone. Posit is a free Business App: Move your orders forward with POSIT, cloud. You can now download the offline XAP package file to install & try it.
Download Locations for Posit 1.1.0.38 XAP file
Package File
Please Click Here > to retrieve available package files for Posit.
Please be aware that the Posit XAP file you are to download is hosted on the Microsoft Store CDN server. You can read more about Posit or get it on Microsoft Store.
To try to install it manually from an SD card, you should choose one of the server location above to get the offline Posit XAP file, move the file to your phone's SD card and then tap 'Install local apps' in the phone's App list.