Don't worry when you see the file name starting with AF3DWBexsd….apk, and you can change the file name to huawei.honor8.lite.honor6x.p10.p10plus.p10lite.p9.p8.nova2.mate9.pro.plus.theme.launcher
Make sure that third-party apps are allowed on your device: go to Menu » Settings » Security » and check Unknown Sources