Cảnh báo sắp đến ngày đến hạn (Microsoft Excel)

=IF(F3<(TODAY()+7),"

The formula checks to see if the date in cell F3 is earlier than a week from today. If so, then the formula displays "< Another approach is to use the conditional formatting capabilities of Excel. Follow these steps:



Select the cells that contain the document due dates.

Choose Conditional Formatting from the Format menu. Excel displays the Conditional Formatting dialog box.

Make sure the first drop-down list is "Cell Value Is." (This should be the default.) (See Figure 1.)   Figure 1. The Conditional Formatting dialog box.



Make sure the second drop-down list is "Less Than."

In the formula area, enter "=TODAY()" (without the quote marks).

Click the Format button. Excel displays the Format Cells dialog box. (See Figure 2.)   Figure 2. The Format Cells dialog box.



Using the Color drop-down list, choose the color red.

Click OK to close the Format Cells dialog box.

Click Add. The Conditional Format dialog box expands to include a second condition.

Make sure the first drop-down list for the second condition is "Cell Value Is." (This should be the default.)

Make sure the second drop-down list is "Less Than."

In the formula area, enter "=TODAY()+7" (without the quote marks).

Click the Format button. Excel displays the Format Cells dialog box.

Using the Color drop-down list, choose the color blue.

Click OK to close the Format Cells dialog box. (See Figure 3.)   Figure 3. The finished Conditional Formatting dialog box.



Click OK to close the Conditional Formatting dialog box.



This is a two-tiered format, and you end up with two levels of alert. If the due date is already past, then it shows up as red. If the due date is today or within the next seven days, then it shows up in blue.