Patch:
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*** org.texi.old	Fri Apr 16 19:57:15 2010
--- org.texi	Fri Apr 16 20:07:59 2010
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*** 1862,1867 ****
--- 1862,1884 ----
  @samp{<l>} in a similar fashion.  You may also combine alignment and field
  width like this: @samp{<l10>}.
  
+ To exclude the special row containing the column width and/or alignment from
+ being exported, insert a dummy first column with @samp{/} in the field that
+ is on the special row, like this (considering the same example as previously):
+ 
+ @example
+ @group
+ |---+---+--------|
+ | / |   | <6>    |
+ | # | 1 | one    |
+ | # | 2 | two    |
+ | # | 3 | This=> |
+ | # | 4 | four   |
+ |---+---+--------|
+ @end group
+ @end example
+ 
+ 
  @node Column groups, Orgtbl mode, Column width and alignment, Tables
  @section Column groups
  @cindex grouping columns in tables