Convert XLSX to XLS in C#
High-speed C# library for converting XLSX to XLS. This is a professional software solution to import and export XLSX, XLS, and many other formats on .NET Framework, .NET Core or Mono Platforms.
Convert XLSX to XLS Using C#
How do I convert XLSX to XLS? With Aspose.Cells for .NET library, you can easily convert XLSX to XLS programmatically with a few lines of code. Aspose.Cells for .NET is capable of building cross-platform applications with the ability to generate, modify, convert, render and print all Excel files. .NET Excel API not only convert between spreadsheet formats, it can also render Excel files as images, PDF, HTML, ODS, CSV, SVG, JSON, WORD, PPT and more, thus making it a perfect choice to exchange documents in industry-standard formats. Open NuGet package manager, search for Aspose.Cells and install. You may also use the following command from the Package Manager Console.
Package Manager Console Command
PM> Install-Package Aspose.Cells
Save XLSX to XLS in C#
The following example demonstrates how to convert XLSX to XLS in C#.
Follow the easy steps to convert XLSX to XLS. Upload your XLSX file, then simply save it as XLS file. For both XLSX reading and XLS writing you can use fully qualified filenames. The output XLS content and formatting will be identical to the original XLSX document.
How to Convert XLSX to XLS via C#
Need to convert XLSX files to XLS programmatically? .NET developers can easily load & convert XLSX to XLS in just a few lines of code.
- Install ‘Aspose.Cells for .NET’.
- Add a library reference (import the library) to your C# project.
- Load XLSX file with an instance of Workbook.
- Convert XLSX to XLS by calling Workbook.Save method.
- Get the conversion result of XLSX to XLS.
C# library to convert XLSX to XLS
There are two alternative options to install “Aspose.Cells for .NET” onto your system. Please choose one that resembles your needs and follow the step-by-step instructions:
Before running the .NET conversion example code, make sure that you have the following prerequisites.
- Microsoft Windows or a compatible OS with .NET, .NET Core, Windows Azure or Mono Platforms..
- Development environment like Microsoft Visual Studio.
- Add reference to the Aspose.Cells for .NET DLL in your project.
XLSX What is XLSX File Format?
XLSX is well-known format for Microsoft Excel documents that was introduced by Microsoft with the release of Microsoft Office 2007. Based on structure organized according to the Open Packaging Conventions as outlined in Part 2 of the OOXML standard ECMA-376, the new format is a zip package that contains a number of XML files. The underlying structure and files can be examined by simply unzipping the .xlsx file.Read More
XLS What is XLS File Format?
Files with XLS extension represent Excel Binary File Format. Such files can be created by Microsoft Excel as well as other similar spreadsheet programs such as OpenOffice Calc or Apple Numbers. File saved by Excel is known as Workbook where each workbook can have one or more worksheets. Data is stored and displayed to users in table format in worksheet and can span numeric values, text data, formulas, external data connections, images, and charts. Applications like Microsoft Excel lets you export workbook data to several different formats including PDF, CSV, XLSX, TXT, HTML, XPS, and several others. The XLS file format was replaced with a more open and structured format, XLSX, with the release of Microsoft Excel 2007. The latest versions still provide support for creating and reading XLS files, though XLSX is the first choice of use now.Read More
Other Supported Conversions
You can also convert XLSX to many other file formats including few listed below.