Please show work in Excel :)

Use Microsoft Excel to prepare your answers to the following problems. Please put both problem in the same file on separate sheets and upload to the dropbox in D2L. Be sure to put your name at the top of each page. The True Attic Company manufactures wooden cases for a variety of clients. As production manager, you have developed the following value chart: a. Determine the value-added activities and their total time. b. Determine the non-value-added activities and their total time. (Show your work!) c. Calculate the manufacturing cycle efficiency. (Show your work!)