You are downloading the Zalo XAP file v22.214.171.124 for Windows Phone. Zalo is a free and useful Social app: Zalo is the new market-leading messaging app with amazing features. * Rich feature set:=> Message your friend in a snap. Receive ... You can now download the offline XAP file to install & try it.
Download Locations for Zalo 126.96.36.199 XAP file
Note: To install it manually from an SD card, you should choose one of the server location above to get the offline Zalo XAP file, move the file to your phone's SD card and then tap 'Install local apps' in the phone's App list.