如果日期格式不正确或空白，如何突出显示单元格？

Question

I have an excel sheet with over 5000+ records.

I am trying to set the date column into correct format (dd/mm/yy)

Instead of visually looking at data to spot errors such as:

• Blanks
• Date inputted like this: 27//01/20 < notice the double //
• Or something like this: 27/01/20.. < notice the full stops

Is there an easier way of finding errors in date column?

Here is a sample of my column A:

1st and 4th row should be marked in red, because it is not correct format.

Reason I want to achieve is this is because I am needing to import it into MySQL with correct column types. Not all to be varchar.

Answer 1

Use conditional formatting - choose rule type 'Use formula...', enter formula =NOT(ISNUMBER($A10)) for appropriate range and get red cells.