It is quite exhausting to create tables in LaTex, since it is the same procedure everytime.
With this tool you can create your tables with a spreadsheet programme of your choice and export them as a .csv-file.
After this you can open csv2tex with the .csv filename as parameter and it will create a .tex file with the corresponding LaTex code.
Start the programme without any parameter to get more remarks.
It is platform independent since it was written in Java.