[LtB]

@ Mike and Geoff,

I have now found the big PDF manual / help file that explains a lot that I first only guessed.
I will now first study that document, and try out what I find there, before  going into details of your postings.

The first suggestion, using other separators, looked promising, because the second column would clearly separate from the first one. Of course the field length in the first column would make the second column to be heavily indented, but it would nevertheless be good.
The problem is, that the tab character creates only a very short whitespace, say two normal spaces. Is that a known behaviour?