In order to install the software on Mac OS X, follow these steps:(Note: AstroPlanner will not run directly from the CD-ROM)a. Unstuff the AstroPlannerMacOSX.sit file by double-clicking it, or by dragging it onto Stuffit Expander. If Stuffit Expander is not present on your system, you will need to download it from http://www.stuffit.com.
b. The unstuffed folder (AstroPlanner) should be placed on your hard disk in a suitable place (the desktop, Documents folder, etc.)
c. Launch the AstroPlanner application from that folder.