Can't open a file in Pages because they are greyed out
I created a document in Pages. It saved fine. I just made a correction to the file, saved it as a new file name (added the word revised) but I can't access it now. It is showing up grey and won't open. I was able to locate it in Finder, but when I resaved it, still wasn't able to open it. I also tried exporting it as a .pdf file but that file also shows up greyed out. I'm new to owning a MAC, always used PC prior to this so I'm not really sure how to fix this issue. Help!
iMac Pro