This text is missing some spaces, please add them: DidsomeoneemailyouaCNAfileandyou'renotsurehowtoopenit?MaybeyouhavefoundaCNAfileonyourcomputerandwonderingwhatit'sfor?Windowsmighttellyouthatyoucan'topenit,orintheworstcase,youmightencounteraCNAfilerelatederrormessage.
Did someone email you a CNA file and you're not sure how to open it? Maybe you have found a CNA file on your computer and wondering what it's for? Windows might tell you that you can't open it, or in the worst case, you might encounter a CNA file related error message.