https://blog.wongcw.com/2021/03/30/%e7%b6%b2%e9%a0%81%e7%ab%afpowerpoint%e6%96%b0%e5%a2%9eauto-fix%e5%8a%9f%e8%83%bd%ef%bc%9a%e5%8f%af%e5%bf%ab%e9%80%9f%e8%aa%bf%e6%95%b4%e5%b9%bb%e7%87%88%e7%89%87%e5%85%83%e7%b4%a0/