title: extract names in excel
body: <p>In my excel file column G I have names with last name + first name + middle name.
  For example Tasha, William P is the sample name and Tasha is the Last name, William is the first name and P would be the middle name. I was able to pull last name by <code>=LEFT(G2, FIND(",", G2)-1)</code>, but can't tell what would be the good ways to extract middle and first name. How can extract first and middle name with excel formula?</p>