You are downloading the TalkTimer AppX file v18.104.22.168 for Windows Phone. TalkTimer is a free and useful Productivity app: How often have you needed a simple timer app that counts down the minutes and seconds to zero? If you said even once, then you might benefit from ... You can now download the offline AppX file to install & try it.
Download Locations for TalkTimer 22.214.171.124 AppX file
Important Notice: Now Due To Unspecified Limitations, You Can Not Use The Offline AppX 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 TalkTimer AppX file, move the file to your phone's SD card and then tap 'Install local apps' in the phone's App list.