I am bioinformatician and I worked on "Mathematical Modeling and Simulation" of signaling pathways. Now, I want to work on Microarray data. I am new in this field, and I didn't know more about microarray data. How we generate (criteria) the excel file, which includes (Gene name,Probe.., Intensity, log ratio, etc) from our dataset. If the data is already normalized then what will be the next step? Is there any good tutorial for beginner, which guides step by step from data selection to analysis. I need the valuable suggestions from all the experts in this field.