Data Analysis with R

I have 8 excel files. Each file has to be analysied with R language. There are 1 indipendent, 1 dependent and 4 control variables. Amount of data is not that hight that s why it does not require a lot of calculation power. Each file has more or less 27 rows. So it is not huge amount of data. I need a regression table. I am trying to examine the affact of independent variable on dependent variable therefore it is y centered analysis. For further information we can have a talk.