XLS XLSB XLSX XLSM ODS
Aspose.Cells  for .NET
XLS

Recover XLS file via C#

Build your own .NET application to repair xls files using .NET.

Repair XLS File Using .NET

With Aspose.Cells for .NET library, you can easily repair XLS file 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

System Requirements

Aspose.Cells for .NET is supported on all major operating systems. Just make sure that you have the following prerequisites.

  • Microsoft Windows or a compatible OS with .NET, .NET Core or Mono Platforms.
  • Development environment like Microsoft Visual Studio.
  • Our product is fully cross-platform and supports Windows, Linux, MacOS, Azure, AWS Lambda.

How to repair xls file using C#

  • Define a class that inherits Aspose.Cells.IWarningCallback.
  • Load XLS file by creating an instance of Workbook, using the inheritance class above, refer to the code above.
  • Save the workbook, the corrupted xls file will be repaired.
Free App to repair XLS file using .NET
Input file
Save as
   
                                   
    
	
  using Aspose.Cells; 
  
  //1, Define a class that inherits Aspose.Cells.IWarningCallback
  class DefaultWarningCallback : IWarningCallback
  {
    //Implement this method as needed
    public void Warning(WarningInfo warningInfo){ }
  }
	
  //2, Load the corrupted file by creating an instance of Workbook, using the inheritance class above
  DefaultWarningCallback w = new DefaultWarningCallback();
  LoadOptions options = new LoadOptions();
  options.WarningCallback = w;
  var workbook = new Workbook("corrupted.xlsx", options);
  
  //3, Save the workbook, the corrupted file will be repaired.
  workbook.Save("repaired.xlsx");
	                
                
            

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

Repair Other Supported Excel Formats

Using C#, one can easily repair other Excel format files.

Repair ODS (OpenDocument Spreadsheet File)
Repair XLS (Excel Binary Format)
Repair XLSB (Binary Excel Workbook File)
Repair XLSM (Spreadsheet File)
Repair XLSX (OOXML Excel File)