.XIB File Extension

Interface Builder File

Developer Apple
2.8  |  8 Votes

What is a XIB file?

Application interface created with Interface Builder, a graphical editor for designing and testing user interfaces; saved in a text-based flat-file format, introduced in Interface Builder 3.0.

More Information

NOTE: XIB files are also called "development-time format" files. Previous versions of Interface Builder saved files in a "deployment format" with a .NIB extension. Interface Builder 3 and later (included with Apple Xcode) can save files in both the XIB and NIB formats.

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Programs that open XIB files

Apple Interface Builder

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