On Mon, 15 Jun 2009, 17:39:47 +0200, Maura Monville wrote: > > whatever editor I use .. I have not found a way to see the unprintable characters (Tab). > Maura hmm, that's pretty easy... Just use "vim" and type :set list<CR>; now every Tab character will be shown as ^I ;-) I don't actually like that editing mode, though; if you, however, insist on changing the leading 8 blanks in a line into a tab, you can run "unexpand" on any text file to do exactly that ... Cheers. l8er manfred