I just downloaded a .pif file and may or may not have opened it, I deleted it right away, what should I do?

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I don't know which app can open a PIF file, so I think you do the correct thing by deleting the file.

There's no reason to be worried about. Most viruses are for Windows and it's very difficult to get one in OS X if you keep your Mac updated. See > http://www.thesafemac.com/mmg

Without knowing what the file was, I can't tell you if it posed any threat - very likely not, though. The majority of actual threats to the Mac are malware which have an install process (ie, you'll see install windows and possibly get prompted for your password). If its just a text file you've downloaded, there's no harm.

Matt

The PIF file extension was a common file found in early versions of Windows operating system.

Short for Program Information file, these files holds information about how Windows should run a non-Windows application. For example, a *.pif file can contain instructions for executing a DOS application in the Windows environment. These instructions can include the amount of memory to use, the path to the executable file, and what type of window to use.

So, no use whatever on a Mac!

You are welcome