The second is to use Excel to do some summary, statistics and other forms, such as the list of purchasing and storage customers, the list of loan customers, the company's internal statements and so on.
In short, it is typing, tabulation, illustration, illustration list, formatting, page setting, etc. Excel also needs to master several conditional summation, counting and simple IF functions.
Able to operate the above content, enough to cope with daily work, occasionally encounter difficult problems, online search or help.