Convert XLS to XLSX C# v.2022.9.9454


Today's modern consumer expects all the same features of their favorite software inside of any application or new tool they download. That means you need to integrate familiar systems like Excel when creating something new for the market. However, that also means you do not want to deal with overly expensive or complex solutions provided by industry standard options like Microsoft Excel or Excel Interop. That is where the team at IronSoftware can help.

With the new tool Convert XLS to XLSX C#, you can add creating, editing, reading, and formatting capabilities to your spreadsheets inside your project build with easy-to-use integrations. This means your end users get the cell styling, number formatting, editing, and other features they grew up learning how to use in Excel, and you don't have to deal with solutions that require a lot of time and money from your team.

In fact, Convert XLS to XLSX C# is entirely free to use while you are in the development phase of your project build. IronSoftware helps ensure you have less stress while ironing out the details of your product. Instead of having to fork over financial resources upfront, purchase a workable license once your project is ready for active deployment. You can download a copy and see for yourself at

Convert XLS to XLSX C# fully supports .NET 5, Core, Standard, Framework, and Azure systems. It allows you to import and export standard file types like .xls, .xlsx, .csv, .tsv, and more, all inside your project's environment. That type of quick conversion is massively beneficial to your end users, who may need to share data with users implementing older systems or running an OS outside of Windows.

IronSoftware was sure to include lengthy supportive documentation for integration of Convert XLS to XLSX C# at That way, you can take advantage of this tool's excellent features!

Use spreadsheets with Convert XLS to XLSX C# Give your C# .NET project enhanced spreadsheet capabilities by integrating the new tool from IronSofware called Convert XLS to XLSX C#. This brings all the editing, creating, manipulating, and formatting features of Excel to your project.

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  • Convert XLS to XLSX C#
  • 2022.9.9454
  • 29 Sep 22
  • Convert XLS to XLSX CSharp Startup Group
  • Win2000, WinXP, Win7 x32, Win7 x64, Windows 8, Windows 10, WinServer, WinOther, WinVista, WinVista x64
  • Shareware
  • 11.38 Mb
  • 268
  • $499.00
Latest Versions History
Version Date Released Release Notes
2022.9.9454 29.09.2022 Added IronXL.SortOrder enum to specify sort direction
 New Range.SortByColumn and Range.SortByColumn methods to sort a range by a specified column, re-arranging rows being sorted according to the new order
 Dependency on IronDrawing nuget package replaced with IronSoftware.System.Drawing
 Bug fixes

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