Some job advertisements say that you need to be proficient in using OFFICE. What does he mean by this proficiency?

First, you should have self-confidence and believe that you can use OFFICE skillfully.

Second, you should find the best OFFICE talents from the crowd. For example, if you apply for a job now, you think you can use OFFICE skillfully. However, at the same time, there is another person who also applies for a job, and his skills are better than yours, so you are not proficient in using Office. There is a third candidate whose skills are superior, so the first two candidates are not proficient in using OFFICE.

To put it bluntly, they recruit a lot of people who are proficient in using OFFICE, and finally only recruit "super proficient in using OFFICE"!