a dash after the first word

Use the correct syntax and placeholders in the converter "Filename - Filename", see picture ...


It is not clear what you want to achieve, what do you mean with "word"?

It is not clear what you want to achieve, what do you mean with "word"?
See also:
how to get a dash between words

You can "throw an anchor", that means, tell the regexp where to start the examination.
For example, the caret sign ^ marks the left side of the given string as the starting point.
$regexp(%_FILENAME%,'^.{7}',)
See also:
How to eliminate one character from beginning of title?

DD.20120411.0946.CEST