Convert 2 large excel (CSV) files into German/French/Italian/Spanish/Dutch and Portuguese using Google translate

I have 2 large excel (CSV) files that I need translating into German/French/Italian/Spanish/Dutch and Portuguese using Goolge translate. Both files are about 10,000 rows long. One file is product names. the other file is product descriptions. I will send you the Excel files and I will need them back in Excel format. the files should be formatted to UTF-8 so that they display correctly with all the extra? foreign characters. Tips: ? ? ? ? I suggest you impliment a caching of the translated text as some of the descriptions are the same. ? ? ? ? Some descriptions are very long so you may need to chunk the text down as I think google translate can only handle so much text at once. How you translate the files is upto you, you may use any programming language but I will need an exe or script with the source code. I have attached a PHP script that may help you.