Excel sum variable number of columns

- In the opening Combine Rows Based on
**Column**dialog box, you need to: (1) Select the**column**name that you will**sum**based on, and then click the Primary Key button; (2) Select the**column**name that you will**sum**, and then click the Calculate >**Sum**. (3) Click the Ok button. Now you will see the values in the specified**column**are summed based on the ... - The second
**column**is the above MMULT formula result (the row-wise**sum****of**the range B2:J11). I've joined both these two**columns**by using the Curly Braces to make a two-**column**array as below. In this, as I've already said above,**column**2 is the combined**sum****of**the range B2:J11. - Filters enable you to visually subset your data within
**Excel**. The values for AUTOFILTER= are ALL, a**column****number**(e.g., 3), or a range of**column****numbers**(e.g., 3-5). The example below specifies ALL, which causes**Excel**to display a drop-down menu that contains all of the values within a**column**. - Type a $ symbol in front of the
**column**name, row**number**or both. =$[**Column**A]$1 =[**Column**B]$1 =$[**Column**C]1: Multiple, discontinuous cells: Use a comma between cell references. =SUM(Budget1, Expenses4, [Projected Earnings]20) A range of cells in the same**column**: Reference the first cell in the range, then the last cell, separated by a :(colon ... **Sum****number**based on corresponding unique value. 1.**Sum**unique**numbers**. The formula in cell D3 adds all unique**numbers**in cell range B3:B12 and returns the total. Unique values are all values occurring only once in the list. Formula in cell D3: = SUMPRODUCT ( ( COUNTIF (B3:B12,B3:B12)=1)*B3:B12)**Excel**365 formula: