As we all know, dealing with Excel, including extracting data from excel file and writing data to excel file, is very common requirement. However, it is not so easy to find a suitable plug-in to help implement this requirement. This time I met this requirement in JAVA project and Node Project, and I found some powerful plug-ins. Here I just want to share with you. Hope it will be useful if you meet same requirement. In JAVA project, class HSSFWorkbook not only can help to read data from excel file, it can also copy one excel from excel template file and write data into new excel file. In node project, I found plug-in “xlsx” can read data from excel file, and “xlsx-populate” can write data to excel file with template format.