Although the preferred method of installing programs is via the package managers described in Chapter 3, Adding, Removing and Updating Applications, you can also download and install individual package files containing software. There are many different kinds of Linux package files. Most of these are associated with the package managers of specific Linux distributions.
If you find a packaged application that you wish to install, it is recommended that you check if there is a native Kubuntu package of the application available through a package manager, and that you install that version instead. This guarantees that the program is completely compatible with your system. If there is no package available through the package manager, you can install it manually. The installation procedure depends on the type of package file.