How to Import and Export Excel XLSX by Go Language

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  • xuri
    New Member
    • Dec 2019
    • 1

    How to Import and Export Excel XLSX by Go Language



    Excelize is a library written in pure Go and providing a set of functions that allow you to write to and read from XLSX files. Support reads and writes XLSX file generated by Microsoft Excel™ 2007 and later. Support save file without losing original charts of XLSX. This library needs Go version 1.10 or later. The full API docs can be seen using go's built-in documentation tool, or online at godoc.org and docs reference.

    GitHub: github.com/360EntSecGroup-Skylar/excelize

    Basic Usage

    Installation

    Code:
    go get github.com/360EntSecGroup-Skylar/excelize
    Create XLSX file

    Here is a minimal example usage that will create XLSX file.

    Code:
    package main
    
    import "github.com/360EntSecGroup-Skylar/excelize"
    
    func main() {
        f := excelize.NewFile()
        // Create a new sheet.
        index := f.NewSheet("Sheet2")
        // Set value of a cell.
        f.SetCellValue("Sheet2", "A2", "Hello world.")
        f.SetCellValue("Sheet1", "B2", 100)
        // Set active sheet of the workbook.
        f.SetActiveSheet(index)
        // Save xlsx file by the given path.
        if err := f.SaveAs("Book1.xlsx"); err != nil {
            println(err.Error())
        }
    }
    Reading XLSX file

    The following constitutes the bare to read a XLSX document.

    Code:
    package main
    
    import "github.com/360EntSecGroup-Skylar/excelize"
    
    func main() {
        f, err := excelize.OpenFile("Book1.xlsx")
        if err != nil {
            println(err.Error())
            return
        }
        // Get value from cell by given worksheet name and axis.
        cell, err := f.GetCellValue("Sheet1", "B2")
        if err != nil {
            println(err.Error())
            return
        }
        println(cell)
        // Get all the rows in the Sheet1.
        rows, err := f.GetRows("Sheet1")
        for _, row := range rows {
            for _, colCell := range row {
                print(colCell, "\t")
            }
            println()
        }
    }
    Add chart to XLSX file

    With Excelize chart generation and management is as easy as a few lines of code. You can build charts based off data in your worksheet or generate charts without any data in your worksheet at all.



    Code:
    package main
    
    import "github.com/360EntSecGroup-Skylar/excelize"
    
    func main() {
        categories := map[string]string{"A2": "Small", "A3": "Normal", "A4": "Large", "B1": "Apple", "C1": "Orange", "D1": "Pear"}
        values := map[string]int{"B2": 2, "C2": 3, "D2": 3, "B3": 5, "C3": 2, "D3": 4, "B4": 6, "C4": 7, "D4": 8}
        f := excelize.NewFile()
        for k, v := range categories {
            f.SetCellValue("Sheet1", k, v)
        }
        for k, v := range values {
            f.SetCellValue("Sheet1", k, v)
        }
        if err := f.AddChart("Sheet1", "E1", `{"type":"col3DClustered","series":[{"name":"Sheet1!$A$2","categories":"Sheet1!$B$1:$D$1","values":"Sheet1!$B$2:$D$2"},{"name":"Sheet1!$A$3","categories":"Sheet1!$B$1:$D$1","values":"Sheet1!$B$3:$D$3"},{"name":"Sheet1!$A$4","categories":"Sheet1!$B$1:$D$1","values":"Sheet1!$B$4:$D$4"}],"title":{"name":"Fruit 3D Clustered Column Chart"}}`); err != nil {
            println(err.Error())
            return
        }
        // Save xlsx file by the given path.
        if err := f.SaveAs("Book1.xlsx"); err != nil {
            println(err.Error())
        }
    }
    Add picture to XLSX file

    Code:
    package main
    
    import (
        _ "image/gif"
        _ "image/jpeg"
        _ "image/png"
    
        "github.com/360EntSecGroup-Skylar/excelize"
    )
    
    func main() {
        f, err := excelize.OpenFile("Book1.xlsx")
        if err != nil {
            println(err.Error())
            return
        }
        // Insert a picture.
        if err := f.AddPicture("Sheet1", "A2", "image.png", ""); err != nil {
            println(err.Error())
        }
        // Insert a picture to worksheet with scaling.
        if err := f.AddPicture("Sheet1", "D2", "image.jpg", `{"x_scale": 0.5, "y_scale": 0.5}`); err != nil {
            println(err.Error())
        }
        // Insert a picture offset in the cell with printing support.
        if err := f.AddPicture("Sheet1", "H2", "image.gif", `{"x_offset": 15, "y_offset": 10, "print_obj": true, "lock_aspect_ratio": false, "locked": false}`); err != nil {
            println(err.Error())
        }
        // Save the xlsx file with the origin path.
        if err = f.Save(); err != nil {
            println(err.Error())
        }
    }
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