Excel 2007 : Mass find and replace - changing abbreviations to full words

So here is my delema. I have a product sheet of like 60,000 products all fall in a couple hundred different brands. Right now the brands are abbreviated and I have another excel which includes the abbreviated word and then in the next cell the full word.

How do I mass find and replace the associated abbreviation with the full word? Any help would be greatly appreciated. I have attached sample data.

Thanks to anyone who can enlighten me.