You're not clear. Especially, what is "listed in Adobe reader"?
Assuming this is a .pdf file (easy to check by showing the file extensions in Windows Explorer) just run Adobe Reader and use File>Open to open the file.
And maybe set Adobe Reader to be the default program to open a pdf-file with? That's easy.
Sorry didn't know what section to post this under. I got a new Brother Printer and the User Guides are listed in Adobe Reader. When I click on the Software User's Guide it opens up in my Chrome browser and won't open any of the links or pages. It says we recommend using IE. How do I change a setting in Adobe to make it open in IE instead of Chrome? Or where do I need to set that? Is that the Default browser setting in my Windows 8.1? I don't think I ever changed that from IE. Links in my Emails default to IE.