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The C# XLSX Library

The C# XLSX Library – Shareware – Windows
Latest Version
 
Safe to install

Effortless Excel Manipulation with the C# XLSX Library

Pete Milner

The C# XLSX Library offers an intuitive interface for developers looking to integrate Excel functionalities into their applications, streamlining data handling tasks with ease.
2025 Editor's Rating
IronXL, The Excel class library for .NET Framework, Core, and Standard, has full support for the XLSX file format, Microsofts most recent iteration of the Excel spreadsheet file format.

We can use C# to read XLS files using IronXL, and indeed import data from them, including live formula updating. IronXL can also be used to create XLSX files or convert old XLS files to XLSX files and vice versa. It can, in addition, import CSV, TSV, JSON, XML, and native class objects within C# to and from Excel workbooks.

Using IronXL and C# together, we can easily take any data within a C# application and export it to Excel so that it can be given to a user as a report or export it to another business system for its consumption.

IronXL differentiates itself by ease of installation using NuGet and its lack of dependency upon Microsoft Office being installed on the target machine. It is a pure C# solution for working with XLSX Excel files.

The IronXL library can be utilized to make and fare XLSX, XLS, CSV, TSV, JSON and XML records.

We can likewise fare to System.Data.DataSet and System.Data.DataTable items for interoperability with SQL

IronXL is an Excel Library for C# and .Net which allows developers to Read and edit Excel data from XLS and XLSX Documents without using Microsoft.Office.Interop.Excel.

The API allows us to Create, Read, Manipulate, Save and Export Excel files intuitively for:

.Net Framework 4.5+
.Net Core 2+
.Net Standard
Xamarin
Windows Mobile
Mono
& Azure Cloud hosting

It also fully supports ASP.Net, MVC, Windows, MacOS, Linux, iOS, Android and Windows Mobile application development.

With IronXL we can Read, Add, Sum, Average, Min, Max and Set Values over any Range of Cells.

You can find more about this at https://ironsoftware.com/csharp/excel/technology/read_xlsx-csharp/#convert-excel-spreadsheet

You can download the software at https://www.nuget.org/packages/IronXL.Excel

Overview

The C# XLSX Library is a Shareware software in the category Miscellaneous developed by The C# XLSX Library.

The latest version of The C# XLSX Library is currently unknown. It was initially added to our database on 09/18/2020.

The C# XLSX Library runs on the following operating systems: Windows.

The C# XLSX Library has not been rated by our users yet.

Pros

  • Easy to use API for creating and manipulating XLSX files.
  • Supports advanced spreadsheet features including charts, tables, and formulas.
  • No need for Microsoft Office installation to work with Excel files.
  • Good performance while reading and writing large datasets compared to some alternatives.
  • Open-source and well-maintained with an active community for support.

Cons

  • Limited documentation can make it challenging for beginners to fully utilize all features.
  • Some edge cases may not be handled well, potentially leading to data corruption or loss.
  • Performance can vary based on the complexity of the spreadsheets being processed.
  • Fewer built-in templates compared to more established libraries may require more manual setup for templates.
  • Licensing can be unclear; users should verify if the terms meet their project requirements.

FAQ

What is The C# XLSX Library used for?

The C# XLSX Library is designed for reading, writing, and manipulating Excel XLSX files in C# applications.

Is The C# XLSX Library free to use?

The library is available under a licensing model, which may include a free version with limited features or functionalities.

Can I read existing XLSX files with The C# XLSX Library?

Yes, you can read existing XLSX files and extract data using this library.

Does The C# XLSX Library support formatting options?

Yes, the library supports various formatting options including fonts, colors, borders, and cell merging.

Is it possible to create new Excel files with The C# XLSX Library?

Absolutely! You can create new Excel files from scratch using the features of this library.

What .NET versions are compatible with The C# XLSX Library?

The library is compatible with .NET Framework, .NET Core, and .NET 5/6 versions.

Does The C# XLSX Library support formulas in Excel?

Yes, the library supports adding and calculating formulas within the Excel files.

Can I insert images into my Excel file using The C# XLSX Library?

Yes, the library provides functionality to insert images into the Excel spreadsheet.

Is there documentation available for The C# XLSX Library?

Yes, comprehensive documentation is available on the official website to help users understand how to utilize the library effectively.

How can I handle large data sets using The C# XLSX Library?

The library is optimized for performance and can handle large datasets efficiently. However, it is recommended to test performance based on specific requirements.


Pete Milner

Pete Milner

I'm Pete, a software reviewer at UpdateStar with a passion for the ever-evolving world of technology. My background in engineering gives me a unique insight into the intricacies of software, allowing me to provide in-depth, knowledgeable reviews and analyses. Whether it's the newest software releases, tech innovations, or the latest trends, I'm here to break it all down for you. I work from UpdateStar’s Berlin main office.

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