XAMPP helps you create and develop your own applications using Web server technologies.Many people know from their own experience that it’s not easy to installDownload XAMPP for Windows, Linux, and OS X. Older versions of Solaris are also available.
If you want to install an application on Windows, we have an .exe file for that. For Mac OS X, we have .dmg files. Those of you who come from Symbian and Java phones background must be knowing about the .sis, .sisx and .jar files. In the same way way, have a specific file format for Android smartphones that is used to install application on it and it is called an APK file (because it has the extension of .apk)
APK files are analogous to other software packages such as APPX in Microsoft Windows or Deb packages in Debian-based operating systems like Ubuntu. To make an APK file, a program for Android is first compiled, and then all of its parts are packaged into one file. An APK file contains all of that program’s code (such as .dex files), resources, assets, certificates, and manifest file. As is the case with many file formats, APK files can have any name needed, provided that the file name ends in “.apk”.
APK files can be installed on Android powered devices just like installing software on PC. When a user downloads and installs an Android application from either an official source (such as Google Play), or from some other (unofficial) site, they are installing an APK file on their device. A user or developer can also install an APK file directly to a device (that is, not via download from the network) from a desktop computer, using a communication program such as adb. By default, the ability to install from unofficial sites or directly from a desktop is disabled for security reasons on most Android devices. You can enable it by changing the setting “Unknown sources” in the Settings menu.
When you want to install an APK manually, just open the APK installer app and navigate to the folder where you have your APK files saved. Now, simply click on the application to bring on the installation screen. Click the install button to successfully install the application.