When you link to a cell in a different workbook, your reference will contain several components. What will the reference look like when you link to a cell such as R$28$ on the worksheet, Expenses, in a file named Facility$-$expenses$2017.$xlsx$?$

$\text{'}($Facility$-$expenses$2017)$Expenses$\text{'}!$$R$$28$

$\text{'}[$Expenses$!]$Facility$-$expenses$2017\text{'}$$R$$28$

$\text{'}[$Facility$-$expenses$2017]$Expenses$\text{'}$;$R$$28$

$\text{'}[$Facility$-$expenses$2017]$Expenses$\text{'}!$$R$$28$