Downloading a file identified only by a long numeric string like is highly unusual and often associated with internal content IDs from specific app stores (like the Huawei AppGallery) or potentially malicious links.
If you are sure the file is safe and must install it manually: Go to > Apps . Select your Browser (e.g., Chrome) or File Manager . Tap Install unknown apps . Toggle Allow from this source to On .
If you have already downloaded a file with this name, until you verify it:
Because this ID does not correspond to a recognized mainstream application, you should follow these steps to stay safe and find what you need: 1. Identify the Source
Upload the APK file to VirusTotal to scan it against dozens of antivirus engines.