Never pay a ransom to access to your files. You’ll most likely end up paying a ransom and still be left with encrypted files. If you only have one NULL file, it’s likely an innocent file that was generated when an app you installed encountered an error. Still, it doesn’t hurt to run a scan to rule out threats.
If the file is a jumbled mess, it’s not a text file. It’s possible it’s some sort of media file—you can try using a media player like Final Media Player or VLC Media Player to open it. You may want to use some sort of universal file viewer if the text editor doesn’t work. Since a file ending with . null isn’t going to be important to any apps, it’s likely safe to delete.
The file manager’s name may vary depending on your Android version.
The file manager’s name may vary depending on your Android version.
If it doesn’t open, you most likely need to use your computer, or simply delete it.
