Adobe InDesign - Share Your InDesign Library With Others (2/CS)
InDesign libraries are cross-platformable. That is, an InDesign library created on one platform is accessible in InDesign on another platform. File extensions aren't required on the Mac but they are in Windows, so be sure to add the .indt extension to your library files. And to ensure objects in your libraries display properly, save them in ASCII data format with TIFF previews.