XLSX to CSV API

The API for converting Excel documents to Csv files.

The API for converting Excel XLSX spreadsheets to comma-separated value CSV files.

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API Endpoint

ConvertAPI offers a cloud-based solution, which makes XLSX to CSV conversion effortless with just a single REST-API call:

        HTTP POST
    
https://v2.convertapi.com/convert/xlsx/to/csv

Postman OpenAPI cURL CLI

Authenticate your API call

Converting xlsx to csv via REST-API is now easier than ever. Sign up for a free account to obtain your authentication secret, append it as a query string parameter to the conversion URL, and voilà! You can find advanced authentication techniques in our docs.

        QUERY AUTHENTICATION
    
https://v2.convertapi.com/convert/xlsx/to/csv?secret=your-api-secret

Convert XLSX to CSV using REST-API in no time!

Once you have your authentication in place, you can convert your files using application/json, multipart/form-data and application/octet-stream content types. A simple HTTP POST request using JSON would look like this:

// Code snippet is using the ConvertAPI JavaScript Client: https://github.com/ConvertAPI/convertapi-js

// Code snippet is using the ConvertAPI Node.js Client: https://github.com/ConvertAPI/convertapi-nodejs

// Code snippet is using the ConvertAPI PHP Client: https://github.com/ConvertAPI/convertapi-php

// Code snippet is using the ConvertAPI Java Client: https://github.com/ConvertAPI/convertapi-java

// Code snippet is using the ConvertAPI C# Client: https://github.com/ConvertAPI/convertapi-dotnet

# Code snippet is using the ConvertAPI Ruby Client: https://github.com/ConvertAPI/convertapi-ruby

# Code snippet is using the ConvertAPI Python Client: https://github.com/ConvertAPI/convertapi-python

// Code snippet is using the ConvertAPI Go Client: https://github.com/ConvertAPI/convertapi-go

REM Code snippet is using the command line utility program: https://github.com/ConvertAPI/convertapi-cli

Conversion request using cURL

You can easily convert xlsx to csv with a simple cURL request. Our documentation provides more advanced cURL request techniques.

File conversion using CLI

ConvertAPI CLI allows you to convert files using our command-line file conversion utility tool. Check out CLI documentation for a detailed explanation and usage examples.

REM Code snippet is using the command line utility program: https://github.com/ConvertAPI/convertapi-cli

Upload the file and see how it works

You can set up the advanced conversion parameters and test the conversion result online using our interactive demo tool. It will auto-generate the code snippet for you!

Advanced XLSX to CSV conversion parameters

Password String

Sets the password to open protected documents.

WorksheetActive Bool

Set to convert active worksheet. If value is set False all worksheet will be converted.

WorksheetIndex String

Set one or several worksheet indexes(number) separated by comma to convert. If value is not set all worksheet will be converted.

WorksheetName String

Set one or several worksheet names separated by comma to convert. If value is not set all worksheet will be converted.