On Mon, 20 Jan 2014, Sven Schreiber wrote:
Perhaps a greyed-out drop-down list of file formats that only becomes
activated when the *.* filter is chosen.
Thinking about this some more: I wouldn't object to a "post-processing"
step, whereby if the user actually selects a filename without an
extension, or with an unrecognized extension (something I'm claiming is
going to be a rare event), we put up a dialog asking him to select from a
list of possible formats, with the option of cancelling. As in
"
'foo': this file is
* delimited text
* an octave file
...
"
Allin