Translating in columns

Hi, 

We are transalting with Trados in a Doc file. Now we want to translate with an excel file. 

Colum 1 PRoduct title NL

Colum 2 PRoduct title that must be translated

Colum 3 Product description NL

Colum 4 Porudct descriptiot that must be translated

How can we get this in the right way in trados?