golang xlsx increase

Golang XLSX added: allows you to easily process Excel files

In daily work, we often need to use Excel files to store and process data. XLSX is a newer Excel file format, which contains multiple different worksheets, various cells, charts, graphics and other elements, making the content of XLSX files richer and more complex.

The Golang language also provides a third-party library called XLSX for processing XLSX files and reading, writing, and modifying the data of XLSX files conveniently and quickly. In this article, we will focus on how to use the Go language’s XLSX library to augment tabular data.

1. Install third-party libraries

In your project directory, use the following command to install the XLSX library:

go get -u github.com/tealeg /xlsx

2. Create XLSX files

It is easy to create XLSX files in Golang. You can use the NewFile method from the XLSX library to create a new file and add a worksheet to it. In the code below, we will create a new XLSX file and add a sheet named "Sheet1" to it.

file := xlsx.NewFile()
sheet, err := file.AddSheet("Sheet1")
if err != nil {
   fmt.Printf(err.Error())
}

3. Add rows and columns

After adding the worksheet, we can add rows and columns to it to insert data into the table. In the code below, we will add three rows of temperature data to the added worksheet and use the SetCellValue method to add cells to them.

row1 := sheet.AddRow()
row1.AddCell().Value = "城市"
row1.AddCell().Value = "气温"

row2 := sheet.AddRow()
row2.AddCell().Value = "北京"
row2.AddCell().Value = "5"

row3 := sheet.AddRow()
row3.AddCell().Value = "上海"
row3.AddCell().Value = "10"

row4 := sheet.AddRow()
row4.AddCell().Value = "广州"
row4.AddCell().Value = "20"

row5 := sheet.AddRow()
row5.AddCell().Value = "深圳"
row5.AddCell().Value = "25"

In the above code, we operate on the worksheets in the XLSX file. First, we added header columns called "City" and "Temperature." Then, we added three rows of data using the AddRow method, which includes temperature data for four cities.

4. Save the XLSX file

After adding rows and columns, we need to save the modifications to the XLSX file. We can use the Save method to save the file, for example:

err = file.Save("temperature.xlsx")
if err != nil {
    fmt.Printf(err.Error())
}

After executing the above code, the modified XLSX file will be saved under the specified file name. You can open the file with Microsoft Excel or another XLSX file reader to view the results of the modifications.

Summary

This article introduces how to use Golang’s XLSX library to add Excel table data. For projects that require processing and maintaining Excel data, the XLSX library provides a powerful tool that allows developers to easily modify, read, and write XLSX files.

The XLSX library not only supports basic table data operations, but also provides some advanced functions, such as modifying fonts, cell formats, formulas, and more. If you need a deeper understanding of the XLSX library's capabilities, check out the XLSX library's documentation and you'll find more powerful features.

The code in this article only provides a simple example. Readers can optimize and improve the code according to specific business scenarios. When using the XLSX library in the Go language, certain programming experience and logical thinking are required, but with increasing use, you will find that this library is easy to use and powerful enough, and is the best choice for processing Excel table data.

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