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.
It supports reading and writing spreadsheet documents generated by Microsoft Excel™ 2007 and later. Supports complex components with high compatibility, and provides a streaming API for generating or reading data from a worksheet with huge amounts of data.
GitHub: https://github.com/xuri/excelize
Installation
go get github.com/xuri/excelize/v2
Create a spreadsheet
Here is a minimal example of usage that will create a 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 a 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 axis. 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 a chart to a 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 a picture to a 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) } }
Sounds like it can be used for RPA, right? @Ri Xu do you have some examples of use cases for this tool?
Thank you.
Yep, there is the documentation website https://xuri.me/excelize, there are many examples in the docs for your reference.