Somewhat prompted by Chris's picture viewing enquiry but sufficiently different to warrant a separate thread.
I'm looking for a file manager for viewing directories in my PC, which as a decent preview feature. Ie typically I'd like to see a directory tree in a left pane, the file list in a middle pane, and a preview of the currently selected file in the right pane.
Of particular interest is having the preview work on as many different file types as possible. Images obviously, but also PDF, .odt/.doc[x] etc.
Background: It's for my wife (a bookkeeper). She has directories of files which are receipts in various formats (scanned images, PDFs, emails, etc) and for the purposes of entering them into an accounts package she often just needs a cursory glance at the file content to get at the date, value, and a general idea of what it was for. At the moment she's spending more time opening and closing documents than she is doing anything else.