CTAN has a new package: spreadtab

[CTAN Announcements]

This should reach your local mirror in a day.

Jim Hef{}feron
Saint Michael's College

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The following information was provided by our fellow contributor:

Name of contribution: spreadtab
Version number: 0.1
Author's name: Christian Tellechea
Location on CTAN: /macros/latex/contrib/spreadtab
Summary description: Spreadsheet features for LaTeX table environments.
License type: lppl

Announcement text: 
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This package provides spreadsheet features for LaTeX table
environments.

It allows to construct tables in a manner similar to a
spreadsheet. The cells of a table have row and column
indices and these can be used in formulas to generate values
in other cells.
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This package is located at 
   http://tug.ctan.org/tex-archive/macros/latex/contrib/spreadtab
.  More information is at
   http://tug.ctan.org/pkg/spreadtab
(if the package is new it may take a day for that information to 
appear).  We are supported by the TeX Users Group http://www.tug.org .  
Please join a users group; see http://www.tug.org/usergroups.html .