hide unwanted rows and columns

Maybe you could just hide the columns you don't want to see.

But xl2003 (and below) have 256 columns--this can't be reduced or increased.

Give this a go...

Set your print area, go to a print preview and select the Print Break Preview.

Maybe this will give you the aesthetics you are looking for. The columns and rows are still there, but not shown as a normal input area.

 Hi
 How to limit the number of columns on a sheet? I'd like to have a 5
 columns on a sheet and afterwards coming the "gray area" (Like it is
 coming after 256 columns or 65536 rows)

 Thanks in advance
 Tarvi

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 tarvi
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If not happy with the other solutions offered, switch to Quattro Pro,
where you can go as small as a one-by-one worksheet, if you like.

Bill