We want to lock the cells after checking the table data and prevent it from being further changed. What can we do?In today's tutorial, you will learn how to use the Validation function to restrict data change.Step one, select the E column, and then add a drop-down list named checked.Click Validation at Data, and you can also use the shortcut Alt+D+L.In the Setting tab, select List at Allow, and enter checked at Source. Finally, click OK.By doing so, we can select checked in the dro....

When using the VLOOKUP function to locate data, a #N/A error sometimes will appear.Two common causes are listed as followed. The first reason: the searched value is not in the searching range. Take this table as an example. To get the sales of erasers, black pens, pencils, and blue pens, we need to insert the following formula: =VLOOKUP(F3,A2:D9,4,0) F3 is Lookup_value, Eraser is the value to look for. A2:D9 is Table_array, the entire table is the range containing the data to look for.....

The INDEX function can look up a value regarding its row and column numbers.There are two forms of the INDEX function, the Array form and the Reference form. · One: Array formWe'll use the Array form to return the value located in the seventh row and the fourth column.First, select cell J6. Next, click Formulas and then Insert Function to insert the INDEX function. The function syntax:INDEX(array,row_num,column_num)The first parameter, 'Array', refers to the array for valu....

Lookup and Reference functions are frequently used for processing data in a table. Today we will learn how to use the FILTER Function to filter data.This function can be used to filter a range of data based on the criteria that you specify.· Primary usage of the Filter functionTake this table as an example. Suppose we want to get the list of class 1, Select G3:G15, this is the cell range we want the result to return, so don't just select cell G3.Enter the formula: =FILTER in the ce....

When copying formulas to other cells, we might encounter three reference modes, namely relative reference, absolute reference, and mixed reference. We need to choose the proper reference method according to the specific calculation requirements and the formula. · 1. Relative ReferenceWhen copying formulas to other cells, the formula will change according to the position of the referenced cell.Take this table as an example. Enter =B2*C2 in cell D2, and then pull down the fill handle to ....