What is .pbxproj file?
The ".pbxproj" is the data file created by Xcode, a development application for Mac OS X. This file saves project data such as the list of source code and resource files and the build properties.
Even though the Xcode interface shows the project.pbxproj file for the project in the IDE's user interface, the actual PBXPROJ file is stored within the .XCODEPROJ file for the project. Note: This is an older format, but still can be opened in Xcode.
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