In early 2020 domestic outbreak of a new crown pneumonia, the country actively epidemic prevention and control, the national district strict access control. Into the residential garage, in addition to wearing masks, body temperature, but also where the company issued employment certificate and proof of return to work.
If a small number of employees, manual entry of information printed is also possible. But if a large company, the number of employees 1000 people, by repetitive manual entry of information takes a lot of time, it is not desirable.
Documentation templates 
all repetitive work, has quickly skills. By searching, found that "Mail Merge" feature, you can quickly implement this function. To do the following:
1, we must first prepare a containing employee names, Excel spreadsheets sex, ID number, job information.
This information, company HR personnel are there, it is easy to get, and general printing these certificates, the Ministry of Personnel is responsible. After the employee database table names stored locally. The following information is for demonstration do data. 
2, open the Word document to prove a template, click on the "reference", "Mail" mark shown in the figure below 
and then click "Open Data Source" 
option to save to a local employee information table, the table selection pop-up screen, select the employee information is located Sheet, in this selection Sheet1. 
3, the mouse cursor to the point on the line after the name of the document, click on the "insert the merge field" 
select "name", click on the "Insert" 
After inserting the following results, "name" with the title number pattern, as in FIG red As shown in box: 
Following the same procedure, gender, identity, and year of entry jobs to operate
4, click "Mail merge" "merge to new document" feature in the pop-up dialog box, click "OK" .
If you want proof of service of each employee individually into a document, you can select "Merge into different new document." 
By the above operation, you can quickly generate batch job proved.
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