
Prism can save files in two formats, PZF and PZFX. If the file is PZFX format, look inside with a text editor There is no way to recover such files of course. If the file has 0 bytes in Explorer or Finder, that means there is an entry in the directory but the file doesn't actually exist. If the file is tiny (few hundred bytes) there won't be any information to recover. Changing that "space" to a hyphen solved the problem. In another case, a strange character in the file name looked like a space in Windows Explorer but prevented the file from opening (being "found"). In one case, a question mark (?) in the folder name seemed to cause problems. To test the idea that the path name is causing the problem, move the file to a folder with a simple name (or to the desktop). Also, Prism can get confused if the folder (path) or file name includes special characters, and reports "File not found". An alternative: make sure the appropriate Windows locale file (i.e. Make sure that the file name and path (the names of the nested folders) contain only "regular" text and not Unicode text (not Cyrillic, not Japanese.). If you don't have a backup system, think about starting one. Hey, it can't hurt and solves lots of strange issues. If you use Prism Mac, it is worth trying to open with Prism Windows and vice versa. So if you are using an older version, install the demo and see if that will open your file. But you can always use the trial (demo) license for 30 days free.

Major updates (from 6 to 7) are free if you have a Prism subscription but otherwise are a paid update. So the first step is to try to open with the latest version. Check by dropping the Help menu and choose Check for Updates. With every Prism update, we try to make it smarter about opening damaged files. Try opening the file with the latest release of Prism We understand how annoying it is when it suddenly becomes impossible to open a Prism file, and we'll do what we can to help solve the problem.
