Select the calculating options : Formula « Formula « Microsoft Office Excel 2007 Tutorial






Click the Office button, and then click Excel Options.
Click the Office button, and then click Excel Options.
In the left pane, click Advanced. 
           Click the When calculating this workbook list arrow, and then select the option:
           Update links to other documents. (Default on).
           Set precision as displayed.
           Use 1904 date system.
           Save external link values.
Save external link values.








6.1.Formula
6.1.1.Enter a FormulaEnter a Formula
6.1.2.Display Formulas in CellsDisplay Formulas in Cells
6.1.3.Copy a Formula Using AutoFillCopy a Formula Using AutoFill
6.1.4.Copy a Formula Using the ClipboardCopy a Formula Using the Clipboard
6.1.5.Use Paste Special to copy only formulasUse Paste Special to copy only formulas
6.1.6.Use keyboard commands to recalculate formulas
6.1.7.Convert a Formula to a ValueConvert a Formula to a Value
6.1.8.Print formulasPrint formulas
6.1.9.Change Formula OptionsChange Formula Options
6.1.10.Include a link in a formula
6.1.11.Hide or Show FormulasHide or Show Formulas
6.1.12.Select the calculating optionsSelect the calculating options