Heidi, a junior desktop technician, approaches you, her supervisor, ashen- faced. A few minutes earlier, the president of the company called the help desk and asked Heidi to give his new assistant the permissions needed to access his personal budget spreadsheet. As she was attempting to assign the permissions, she accidentally deleted BUDGET_USERS group from the spreadsheet's access control list. Heidi is now terrified because that group was the only entry file's ACL. Now no one can access the spreadsheet file, not even the president or the Administrator account. Is there any way to gain access to the file, and if so, how?