You have been supplied with the sales data from Chuckie's Supplies, a small fruit and explosives retailer. Being a small store, with a technologically unsophisticated owner, Chuckies keeps their sales records in on one big Excel spreadsheet. This has been an improvement over the stack of papers in a shoebox method that it replaced, but recently they have encountered issues with things such as address changes, returns of only one of many products in a purchase, and changing prices due to supplier changes. Chuckie needs your help in rescuing his business, to continue supplying the good neighborhood people with fresh berries and C4.