CTAN has a new package: exceltex
Exceltex is a small LaTeX package combined with a helper program written in Perl, which makes it easy to include tabulars and cells from Excel files in LaTeX documents. Exceltex' intention is it to provide a "do it once and forget" solution for accessing data from spreadsheet files. You don't need to sync data in LaTeX with the Spreadsheet anymore (or even copy each cell by hand - uhhhh), except that you have to press the "save" button of your spreadsheet application before running exceltex :)
See this package at http://tug.ctan.org/tex-archive/macros/latex/contrib/exceltex . You may get a better network connection by using a CTAN mirror near to you; see http://tug.ctan.org/tex-archive/README.mirrors . Our service is supported by the TeX Users Group http://www.tug.org . Please join a users group; see http://www.tug.org/usergroups.html .
Exceltex – Get data from Excel files into LaTeX
Exceltex is a LaTeX package combined with a helper program written in Perl. It provides an easy to use yet powerfull and flexible way to get data from Spreadsheets into LaTeX.
In contrast to other solutions, exceltex does not seek to make the creation of tables in LaTeX easier, but to get data from Spreadsheets into LaTeX as easily as possible.
The Excel (TM) file format only acts as an interface between the spreadsheet application and exceltex beacause it is easily accessible (via the Spreadsheet::ParseExcel Perl module) and because most spreadsheet applications are able to read and write Excel files.