I am a new Mac user from of course Windows. I have a CD product catalogue which comes in a .exe format. There seemed no way that I can view the contents in Mac.
You'll need a full install for Windows, one of the VM products (VirtualBox 4.x is free from Oracle); or follow the pdf guide on how to setup and install Windows natively (in Utilities folder in Applications, launch Boot Camp Assistant):
As Thomas A Reed points out, an exe file is a windows application. I don't know why a product catalog would be in an exe file but I suppose it's possible. It seems more likely that the exe file is an application that either downloads the catalog or opens and displays a disk file containing the catalog; in the latter case you may already have the actual product catalog on your disk drive. Your might try using Spotlight to search for files with names containing key words related to your product catalog name. You also could use Spotlight to search file contents for key words you may recall from the catalog contents. Finally, is this possible: Use your old Windows PC or borrow one and run your "product catalog." While it is running, check for an option to export the information you need to a file in a format (say, text) that is readable on your Mac.
Some more information may help someone to provide a better solution.
1. What is the exact file name of the .exe file? (Someone may be familiar with that particular Windows application.)
2. Have you ever used this file before on a Windows computer? If so, what does it do? Does it simply permit you to type in information about your CD collection or does it automatically compile information from CDs previously ripped to or downloaded to your computer? Or does it do something else entirely?