# 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](https://pkg.go.dev/github.com/xuri/excelize/v2) and [docs reference](https://xuri.me/excelize/).
## Basic Usage
### Installation
```bash
go get github.com/xuri/excelize
```
- If your packages are managed using [Go Modules](https://go.dev/blog/using-go-modules), please install with following command.
```bash
go get github.com/xuri/excelize/v2
```
### Create spreadsheet
Here is a minimal example usage that will create spreadsheet file.
```go
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.
```go
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.
```go
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
```go
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](https://www.ecma-international.org/publications-and-standards/standards/ecma-376/).
## Licenses
This program is under the terms of the BSD 3-Clause License. See [https://opensource.org/licenses/BSD-3-Clause](https://opensource.org/licenses/BSD-3-Clause).
The Excel logo is a trademark of [Microsoft Corporation](https://aka.ms/trademarks-usage). This artwork is an adaptation.
gopher.{ai,svg,png} was created by [Takuya Ueda](https://twitter.com/tenntenn). Licensed under the [Creative Commons 3.0 Attributions license](http://creativecommons.org/licenses/by/3.0/).