How to Import and Export Excel XLSX in Go Language

Excelize is a library written in pure Go providing a set of functions that allow you to write to and read from XLSX files. It supports reading and writing XLSX file generated by Microsoft Excel™ 2007 and later. It supports saving a 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: https://github.com/360EntSecGroup-Skylar/excelize
Document: https://xuri.me/excelize/

Installation

go get github.com/360EntSecGroup-Skylar/excelize

Create XLSX File

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

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 bar to read an XLSX document.

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.

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:

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())
    }
}

History

• 30^th December, 2019: Initial version