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preface Application background: A worksheet needs to be split into multiple worksheets according to certain conditions, and multiple worksheets are stored in a workbook according to certain conditions, and the format, such as color, merged cells, font size, etc., is mainly used to preserve the format when copying the header. Difficulties ...

prefaceMore and more developers say that Excel has not been opened since Python / panda was used. It is four words to process and visualize tables in Python - very fast!Let me give some obvious examples1. Delete duplicate lines and blank linesWe directly use dict.fromkeys to convert the current data into a dictionary. The default value is None. ...

Because the work needs to read out the Excel file records and then write them into the database. Before, VBS was used, but it is not a formal application. It is also OK to use PowerBuilder, but PowerBuilder is only used temporarily after all. C# it has not been used for a long time, so I intend to use the recently learned PHP to operate. After ...

preface Recently, I took over a requirement. I need to add a menu column in the existing project, which has the function of exporting excel, but the format is relatively complex. There are single group data display and multiple groups of data display. I checked many articles and didn't understand them very well. However, this article is almost ...

preface Always believe that good things are about to happen background Some time ago, I encountered such a problem when crawling the website data. There is a data source. Because of the large amount of data, it is not displayed on the page, only a download button is provided. Now it is necessar ...

Record a grid layout practical application sharing meeting Recorded the technology sharing meeting in the group. For students with the same needs, please refer to it Sharing the whole process, about 45 minutes The final drawing is as follows: ↓ 1, Can it be used in engineering? (compatibility) The old growth talk, but also a decisive one, ...

background There are many friends who are interested in Python handling excel, although I am not an expert in this field. Python is completely unfamiliar if you use C# openxl to do things in minutes or Npoi again.   target Since learning is the goal to accomplish this, it doesn't have to be complicated (neither can I do it), let's assume we ...

This paper introduces the method of creating grouping in Excel by Java program, which can group rows or columns and set whether to expand or collapse detailed data. When you set up data groups and expand or collapse them, you can do the following:Method 1:Method of adoption sheet.groupByRows(int firstRow, int lastRow, boolean isCollapsed) shee ...

preface The text and pictures of this article are from the Internet, only for learning and communication, not for any commercial purpose. The copyright belongs to the original author. If you have any questions, please contact us in time for handling. Add Penguin Group 695185429 and you can get it for free. All the information is in the group f ...

Spring MVC + POI export web data to Excel Apache POI is an open source library of the Apache Software Foundation. POI provides the functions of reading and writing Microsoft Office files to Java programs. Next, I will release an example of Excel export based on spring MVC + Maven + poi. Welcome to criticize and correc ...