In Excel, can you calculate just the selected cells?

Jennifer has a huge spreadsheet that takes forever to calculate. After calculating the entire workbook, the totals on SheetA have not updated. This short VBA macro will allow her to calculate only the selected range.

Table of Contents
(0:00) Problem: Entire workbook does not recalc
(0:55) Add Manual & Automatic Calculation to QAT
(1:12) Explanation of Manual Calculation Mode
(1:56) Open VBA Editor add use Selection.Calculate
(2:35) Saving Personal.XSLB
(2:47) Adding Macro to QAT in Excel
(3:20) Calculating selection in Excel
(3:50) Broken Workbooks
(5:00) Wrap up with Wally & Nancy