U-tec App Invitation: Click to download the latest App File Type Not Supported

[Cyr]

I tried to download the apk file to my Samsung Galaxy S21+ 5G phone and keep getting "This file type is unsupported. Any suggestions?

[Frank]

Here is the Beta version of the App:

U-tecV2.0.0.6-google024.apk

Click download at the right corner.