excelize

Go language library for reading and writing Microsoft Excel™ (XLAM / XLSM / XLSX / XLTM / XLTX) spreadsheets

Description

Excelize is a library written in pure Go providing a set of functions that allow you to write to and read from XLSX / XLSM / XLTM files. Supports reading and writing spreadsheet documents generated by Microsoft Excel™ 2007 and later. Supports complex components by high compatibility, and provided streaming API for generating or reading data from a worksheet with huge amounts of data. This library needs Go version 1.15 or later.

Programming language: Go

License: BSD 3-clause "New" or "Revised" License

Tags: Utilities     Go     Golang     Excel     OOXML    

Latest version: v2.3.1

README

Excelize

Introduction

Excelize is a library written in pure Go providing a set of functions that allow you to write to and read from XLAM / XLSM / XLSX / XLTM / XLTX files. Supports reading and writing spreadsheet documents generated by Microsoft Excel™ 2007 and later. Supports complex components by high compatibility, and provided streaming API for generating or reading data from a worksheet with huge amounts of data. This library needs Go version 1.16 or later. The full docs can be seen using go's built-in documentation tool, or online at go.dev and docs reference.

Basic Usage

Installation

go get github.com/xuri/excelize

• If your packages are managed using Go Modules, please install with following command.

go get github.com/xuri/excelize/v2

Create spreadsheet

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

package main

import (
    "fmt"

    "github.com/xuri/excelize/v2"
)

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 spreadsheet by the given path.
    if err := f.SaveAs("Book1.xlsx"); err != nil {
        fmt.Println(err)
    }
}

Reading spreadsheet

The following constitutes the bare to read a spreadsheet document.

package main

import (
    "fmt"

    "github.com/xuri/excelize/v2"
)

func main() {
    f, err := excelize.OpenFile("Book1.xlsx")
    if err != nil {
        fmt.Println(err)
        return
    }
    defer func() {
        // Close the spreadsheet.
        if err := f.Close(); err != nil {
            fmt.Println(err)
        }
    }()
    // Get value from cell by given worksheet name and cell reference.
    cell, err := f.GetCellValue("Sheet1", "B2")
    if err != nil {
        fmt.Println(err)
        return
    }
    fmt.Println(cell)
    // Get all the rows in the Sheet1.
    rows, err := f.GetRows("Sheet1")
    if err != nil {
        fmt.Println(err)
        return
    }
    for _, row := range rows {
        for _, colCell := range row {
            fmt.Print(colCell, "\t")
        }
        fmt.Println()
    }
}

Add chart to spreadsheet file

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

package main

import (
    "fmt"

    "github.com/xuri/excelize/v2"
)

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 {
        fmt.Println(err)
        return
    }
    // Save spreadsheet by the given path.
    if err := f.SaveAs("Book1.xlsx"); err != nil {
        fmt.Println(err)
    }
}

Add picture to spreadsheet file

package main

import (
    "fmt"
    _ "image/gif"
    _ "image/jpeg"
    _ "image/png"

    "github.com/xuri/excelize/v2"
)

func main() {
    f, err := excelize.OpenFile("Book1.xlsx")
    if err != nil {
        fmt.Println(err)
        return
    }
    defer func() {
        // Close the spreadsheet.
        if err := f.Close(); err != nil {
            fmt.Println(err)
        }
    }()
    // Insert a picture.
    if err := f.AddPicture("Sheet1", "A2", "image.png", ""); err != nil {
        fmt.Println(err)
    }
    // 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 {
        fmt.Println(err)
    }
    // 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 {
        fmt.Println(err)
    }
    // Save the spreadsheet with the origin path.
    if err = f.Save(); err != nil {
        fmt.Println(err)
    }
}

Contributing

Contributions are welcome! Open a pull request to fix a bug, or open an issue to discuss a new feature or change. XML is compliant with part 1 of the 5th edition of the ECMA-376 Standard for Office Open XML.

Licenses

This program is under the terms of the BSD 3-Clause License. See https://opensource.org/licenses/BSD-3-Clause.

The Excel logo is a trademark of Microsoft Corporation. This artwork is an adaptation.

gopher.{ai,svg,png} was created by Takuya Ueda. Licensed under the Creative Commons 3.0 Attributions license.