Reading Customer Reviews for Sentiment Analysis from Excel

Hi, 

I am new to using rapid miner for sentiment analysis/text mining. I watched couple of videos. I used the tokenize, filter, stop words etc. 

I have customer id, review date, year of review (Computed from 2nd), customer location (From web scaped data) and the customer review. The field name in Excel is Customer_reviews.When I import the excel, the customer_review comes up as polynomial. 

I also get all the positive/negative word list as one word in rapidminer, where as when I look it up in Notepad++, it is all in a separted lines.

How do I use the customer_review as a text to arrive at sentiments using postive/negative word list? 

Could some one point me the right direction? 

Thanks for your time.

Ramesh