Files that contain the .lib file extension usually hold a static data library of information. The information in this file is associated with a specific computer application. The LIB files usually store the functions that are referenced by the application, which is then associated with the library.
LIB files may also contain objects like images, media and text clippings. LIB files are an alternative to DLL files, which contain dynamic link libraries. The LIB files contain static libraries that can be used as import libraries for DLL files, with the imported library files being marked with the .lib file suffix.
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