If you don't have Stuffit available, simply apply the proper 3-letter extension to the file so that when it does arrive at its destination, it is at least partially recognizable. So here is what it all comes down to. When you create a file that is bound for another computer or another platform altogether, always use a three-digit extension to identify the file. That way, regardless of where the hapless file may find itself, it can be identified by its host system and recognized for what it truly is. If you order in the next 13 minutes .Wait, wrong article Seriously, there are a few other minor issues to watch out for when crossing the great platform divide.
File format is an issue that can drive crazy men sane.
When it comes to most applications, remember that, for the most part, file formats are proprietary, which means that the only way to view the file is with that application. Some applications, like QuarkXPress, create documents that are completely cross platform compatible but can still only be opened by QuarkXPress. And then, there are the standard file formats that work on both platforms. No formatting, no fancy layout, just text. You may also be familiar with some of the more common graphic formats like .tif, .jpg, and the ever-popular .eps.