What is a .XIB file?
A .XIB file is a type of file used to create the look and layout of an app. It is made with a program called Interface Builder, which is a tool that lets you design and test how an app's interface will appear and work, without needing to write a lot of code. This file is special because it is saved in a way that is easy to read and edit, using text. This method started with version 3.0 of Interface Builder.
To open a .XIB file, you need to use the Apple Interface Builder. This program is part of Apple Xcode, which is a set of tools for making apps for Apple devices. The Interface Builder lets you work with these .XIB files, which are sometimes referred to as "development-time format" files. This means they are used while developing an app, to set up how it looks and feels.
In the past, Interface Builder used a different format called .NIB for saving these interface designs. However, from version 3.0 and onwards, it can save files in both the .XIB format and the older .NIB format. The main difference is that .XIB files are easier to work with, especially for teams of people working on the same project, because they are saved in a text format that can be easily shared and edited.
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