To analyze differences in methylation between our experimental groups, we need to create a list of deferentially methylated loci. 

The new spreadsheet LCLs vs. B cells (LCLs vs. B cellswill open in the Analysis tab.

It is best practice to occasionally save the project you are working on. Let's take the opportunity to do this now. 

Saving the project saves the identity and child-parent relationships of all spreadsheets displayed in the spreadsheet tree. This allows us to open all relevant spreadsheets for our analysis by selecting the project file.