I'm looking a thumbnail preview of a .psd file in Bridge. When I try to open it in Photoshop, it says that it can't open because "it is not a valid photoshop file." What's the problem?
The preview may be readable, but the full file not readable.
And if you have the wrong file extension, sometimes the OS will provide a thumbnail, even though the file can't be read (because it is trying to read the wrong filetype).
Retrieving data ...