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                                                                          SESSION



                                                                              12










                    Programming with Custom Formulas










               Session Checklist

               ✔ Creating cell references in formulas
               ✔ Using absolute versus relative cell references
               ✔ Referring to named ranges in formulas
               ✔ Linking formulas to other worksheets and workbooks

               ✔ Using operators in Excel formulas
               ✔ Avoiding circular references
               ✔ Controlling formula calculation



                     n Excel program often needs to perform calculations, and the programmer has two
                     options in this regard. You can perform the calculations in VBA code using the opera-
               A tors that were covered in Session 5, or you can perform the calculations in the Excel
               worksheet by inserting formulas into worksheet cells. The latter approach is the topic of this
               session.


               Cell References in Formulas

               An Excel formula almost always uses data that is located in other worksheet cells. To write
               custom formulas, you need to understand how to reference these cells. There are three ways
               to reference cells:
                   As a relative cell reference
                   As an absolute cell reference
                   As a named range
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