This zip file contains a practice excel spreadsheet (with answer key) and a pdf of student directions on how to create a bar graph in excel. This activity walks students through how to use M.S. Excel 2013 to graph data (student test scores with and without studying). The activity also includes graph analysis questions (with answer key). This is a great intro activity if you would like students to use Excel to graph their data throughout the year.
I also have a line graph tutorial if you are interested: http://www.teacherspayteachers.com/Product/Using-Excel-to-Create-Line-Graphs-in-Science-1287369