The most used files which we accept are:

Adobe illustrator 8
Pagemaker 6.5
Photoshop 5.0 & CS
CorelDraw 7 & 9
Microsoft Word 2000
Microsoft Publisher 98
Microsoft Powerpoint 2000

However we prefer PDF's, if the application supports PDF creation then that is the easy way to go. if you do not have PDF creation software, use our download facility for a trial copy of Desk PDF.
Converting your files to a PDF will get around typeface problems or if you can convert text to curves that will also get around that problem.