Now you have to change the name of that .apk file with extension .zip. Also change the file name for example supposesyour file name is file.apk and you changed that file1.apk.zip. For example file.apk ...

An Android APK file contains all the open-source Java files used to set up and run the Google Android app. You can extract these files and load them into your local Android SDK, ...

Purely Java Based Analyze the contents of the APK file Decompile and extract the contents of the APK file Decompile the DEX files to JAVA source files (.dex to .java) [ New feature in v2.0 ] Select ...

These tools provide a user-friendly graphical interface, which enables you to unpack, edit, and repack an APK file easily. Some popular APK editors include APK Editor Pro, Apktool, and AndroChef Java ...