excelize
Go language library for reading and writing Microsoft Excel™ (XLAM / XLSM / XLSX / XLTM / XLTX) spreadsheets
Install / Use
claude mcp add qax-os -- npx -y github:qax-os/excelizeIf the server publishes to npm under a different name, use that package instead — check the repo README.
MCP Server
Model Context Protocol server
Quality Score
Category
Data & AnalyticsSupported Platforms
Tags
Our assessment of excelize
excelize scores 94/100 on our quality scale, 76th of 595 Data & Analytics skills we index (top 13%).
Its MCP Server is 7.6 KB long, well organised into 11 sections with 6 code examples: a thorough specification that gives an agent plenty to work with.
With 21,079 GitHub stars, it is one of the more widely adopted skills in the catalogue.
Maintenance, license and trust
- The repository was last updated 3 days ago, so excelize is actively maintained.
- Our last check on 2026-10-20 found the source still online.
- It is released under the BSD-3-Clause license, a permissive license that allows use, modification and commercial use with attribution.
- Its trust signals score 100/100, with no cautions. These come from repository metadata, not a code audit — read the skill file before letting an agent act on it.
Safety scan
No issues foundOur scan of the whole file found no instruction hijacking, hidden characters, credential access, data exfiltration or destructive commands. An AI review of the same text found nothing harmful.
AI review by kimi-k2.7-code on 2026-09-24. Automated pattern scan on 2026-09-24. It catches known dangerous patterns, not every risk — read a skill before letting an agent act on it.
excelize compared with similar skills
All 4 of these similar skills score higher than excelize; compare them before choosing.
| Skill | Score | Stars | Updated | Format |
|---|---|---|---|---|
| excelize (this skill)by qax-os | 94 | 21.1k | 3d ago | MCP Server |
| Agent-Reachby Panniantong | 100 | 109.2k | today | CLAUDE.md |
| headroomby headroomlabs-ai | 100 | 78.9k | today | CLAUDE.md |
| CowAgentby zhayujie | 100 | 47.8k | today | CLAUDE.md |
| Scraplingby D4Vinci | 100 | 97.9k | today | MCP Server |
Frequently asked questions
- How do I install excelize?
- Run
claude mcp add qax-os -- npx -y github:qax-os/excelize. The install tabs above show the steps for each supported agent. - Which AI agents does excelize work with?
- It is written for Claude Code and Claude Desktop, as a MCP Server file. Other agents that read the same format can often use it too.
- Is excelize safe to use?
- Our scan of the whole file found no instruction hijacking, hidden characters, credential access, data exfiltration or destructive commands. An AI review of the same text found nothing harmful. It is BSD-3-Clause-licensed and scores 100/100 on trust signals. Skills are instructions an agent will follow, so read the file before installing it and do not approve commands you do not understand.
- Is excelize still maintained?
- The repository was last updated 3 days ago, so excelize is actively maintained.
Skill content
View source on GitHubExcelize
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 1.25.0 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()
defer func() {
if err := f.Close(); err != nil {
fmt.Println(err)
}
}()
// Create a new sheet.
index, err := f.NewSheet("Sheet2")
if err != nil {
fmt.Println(err)
return
}
// 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.
<p align="center"><img width="650" src="./test/images/chart.png" alt="Excelize"></p>package main
import (
"fmt"
"github.com/xuri/excelize/v2"
)
func main() {
f := excelize.NewFile()
defer func() {
if err := f.Close(); err != nil {
fmt.Println(err)
}
}()
for idx, row := range [][]interface{}{
{nil, "Apple", "Orange", "Pear"}, {"Small", 2, 3, 3},
{"Normal", 5, 2, 4}, {"Large", 6, 7, 8},
} {
cell, err := excelize.CoordinatesToCellName(1, idx+1)
if err != nil {
fmt.Println(err)
return
}
f.SetSheetRow("Sheet1", cell, &row)
}
if err := f.AddChart("Sheet1", "E1", &excelize.Chart{
Type: excelize.Col3DClustered,
Series: []excelize.ChartSeries{
{
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: excelize.ChartTitle{
Paragraph: []excelize.RichTextRun{
{
Text: "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", nil); err != nil {
fmt.Println(err)
}
// Insert a picture to worksheet with scaling.
if err := f.AddPicture("Sheet1", "D2", "image.jpg",
&excelize.GraphicOptions{ScaleX: 0.5, ScaleY: 0.5}); err != nil {
fmt.Println(err)
}
// Insert a picture offset in the cell with printing support.
enable, disable := true, false
if err := f.AddPicture("Sheet1", "H2", "image.gif",
&excelize.GraphicOptions{
PrintObject: &enable,
LockAspectRatio: false,
OffsetX: 15,
OffsetY: 10,
Locked: &disable,
}); 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.
The Go gopher was created by Renee French. Licensed under the Creative Commons 4.0 Attributions license.
Gold Sponsors
<a href="https://www.gravityclimate.com" alt="Gravity"><img width="120" src="https://xuri.me/excelize/images/vendor/gravityclimate.com.svg" alt="Gravity"></a>
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Languages
Trust signals
From repository metadata: license, adoption, age and documentation. Not a code audit — see the Safety scan above for what the skill file itself contains.
