And the topic of this conversation is about Excel. If your Excel is not as good as me, don't pick on me regarding this 九九乘法表. I have a Honours Bachelor of Math degree and I don't memorize 九九乘法表. So what?
And yes, you are very *smart* that you can still re-call and argue with a mature adult about 九九乘法表. Get a life. Go learn Excel.