What is Package Installer on Android phone?

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Tags

1. #process
2. #format
3. #manually
4. #known
5. #stands
6. #package
7. #installing
8. #sideloading
9. #google
10. #windows
11. #extension
12. #outside
13. #download
14. #applications
15. #android
16. #store
17. #install