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Convert XLSB File to XLS in C#

The native XLSB file conversion API makes it easy to convert XLSB to XLS in C#, VB.NET, and ASP.NET applications. It supports highly-accurate conversion of popular Excel worksheet formats to and from Word documents (DOC, DOCX), PowerPoint presentations (PPT,PPTX), PDF, Photoshop (PSD, PSB), eBook (EPUB), web (HTML, XML, JSON) and image file formats (JPG, PNG, BMP, PNG) without using any external tool or a third party API. The advanced XLSB document manipulation and conversion features allow you to programmatically add watermarks, select different page numbers or ranges in the source XLSB document that you want to convert; customize the appearance of it and save it as XLS document using a few lines of C# code. The online XLSB to XLS converter tool is free to use and efficiently showcases the conversion functionality inherited in Conholdate.Total for .NET APIs. No registration required – just upload your XLSB file and get your XLS file in seconds.

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Convert XLSB to XLS in .NET

Follow these simple steps to convert XLSB files to XLS in .NET. You can view the converted files as they are, or render and display them as HTML without using any external software.

Get the respective assembly files from the downloads or fetch the whole package from NuGet to add Conholdate.Total for .NET directly in your workspace.

  • Create Converter object to convert XLSB document
  • Set the convert options for XLS format
  • Call Convert method of Converter class instance for conversion to XLS
  • Set options for HTML viewer
  • Create Viewer object to view converted XLS as HTML

Free App for XLSB to XLS Conversion



// Supports converting documents between Word, Excel, PowerPoint, Project, Images, Web, Email, Metafiles and Diagram file formats.
// Supported file formats: https://docs.groupdocs.com/conversion/net/supported-document-formats/
using (Converter converter = new Converter("input.xlsx"))
{
var convertOptions = converter.GetPossibleConversions()["pdf"].ConvertOptions;
converter.Convert("output.pdf", convertOptions);
}
HtmlViewOptions viewOptions = HtmlViewOptions.ForEmbeddedResources("output{0}.html");
using (Viewer viewer = new Viewer("output.pdf"))
{
viewer.View(viewOptions);
}

Convert XLSB to PDF/Word/HTML/PPTX in C#

Convert your XLSB files to other popular documents formats such as PDF, HTML, PowerPoint presentations and Word processing documents using C# .NET code. Load the source XLSB file and save it as a converted document in some other document format such as PDF, DOCX, HTML or PPTX.

  • Create Converter object and pass source XLSB file to it
  • Instantiate the proper ConvertOptions class e.g. (PdfConvertOptions for conversion to PDF, WordProcessingConvertOptions for conversion to Word formats, MarkupConvertOptions for conversion to HTML, PresentationConvertOptions for conversion to PowerPoint formats)
  • Call Convert method of Converter class instance for conversion to PDF/HTML/PPTX or Word document format

Auto-Cache Converted XLS Document

In certain situations, the converted document may have a larger file size and require additional time for conversion. By default, the cached converted documents are stored locally. However, with Conholdate.Total for .NET, you can take advantage of the custom cache implementation feature using the iCache interface. This allows you to efficiently manage and customize the storage of conversion results according to your specific requirements. By implementing this feature, you can significantly improve the repetitive conversion process.

The .NET Excel conversion library offers comprehensive support for converting to and from password protected archives. Additionally, it provides the ability to compress the conversion results into various archive formats, including ZIP, RAR, 7Z, TAR, GZ, and BZ2.


// Supports converting documents between Word, Excel, PowerPoint, Project, Images, Web, Email, Metafiles and Diagram file formats.
// Supported file formats: https://docs.groupdocs.com/conversion/net/supported-document-formats/
//For Excel to PDF conversion in .NET
// Instantiate PdfConvertOptions class and call Convert method for Excel Workbook to PDF conversion
using (var converter = new GroupDocs.Conversion.Converter("sample.xlsx"))
{
var options = new PdfConvertOptions();
converter.Convert("converted.pdf", options);
}
//For Excel to HTML conversion in .NET
// Instantiate MarkupConvertOptions class and call Convert method for Excel Workbook to HTML conversion
using (var converter = new GroupDocs.Conversion.Converter("sample.xlsx"))
{
var options = new MarkupConvertOptions();
converter.Convert("converted.html", options);
}
//For Excel to Word documents conversion in .NET
// Instantiate WordProcessingConvertOptions class and call Convert method for Excel Workbook to Word conversion
using (var converter = new GroupDocs.Conversion.Converter("sample.xlsx"))
{
var options = new WordProcessingConvertOptions();
converter.Convert("converted.docx", options);
}
//For Excel to PowerPoint Conversion in .NET
// Instantiate PresentationConvertOptions class and call Convert method for Excel Workbook to PowerPoint conversion
using (var converter = new GroupDocs.Conversion.Converter("sample.xlsx"))
{
var options = new PresentationConvertOptions();
converter.Convert("converted.pptx", options);
}

Convert XLSB to XLS with Watermarks

Accurately convert XLSB to XLS exactly as the original source file and apply text or image watermarks to XLS pages using C# .NET.

  • Create Converter object to convert XLSB document
  • Create new instance of WatermarkOptions class
  • Specify watermark properties (color, width, text, image etc)
  • Instantiate the proper ConvertOptions class
  • Set Watermark property of the ConvertOptions instance
  • Call Convert method of Converter class instance for conversion to XLS

Extract XLSB Document Information

Discover valuable file-format specific information using the document information extraction feature. Obtain basic details from the source document file (XLSB) and extract additional data, including project start and end dates from Microsoft Project files, printing restrictions from PDF documents, and a list of enclosed folders from Outlook data files.

Easily convert popular document file formats across various operating systems including Windows, Linux, and macOS. Seamlessly utilize platforms such as Windows Azure, Mono, and Xamarin for efficient document conversions.


// Supports converting documents and adding watermarks to 100+ file formats including Word, Excel, PowerPoint, Project, Images, Web, Email, Metafiles and Diagrams
// Supported file formats: https://docs.groupdocs.com/conversion/net/supported-document-formats/
using (Converter converter = new Converter("input.docx"))
{
WatermarkOptions watermark = new WatermarkOptions
{
Text = "Sample watermark",
Color = Color.Red,
Width = 100,
Height = 100,
Background = true
};
PdfConvertOptions options = new PdfConvertOptions
{
Watermark = watermark
};
converter.Convert("output.pdf", options);
}

Convert JSON File to XLSB in .NET

Converting a JSON file to XLSB in .NET is now easier with Conholdate.Total for .NET APIs. Easily leverage JSON files as data sources and precisely convert them to Excel spreadsheet format (XLSB) using just a few lines of C# code, all without the need for external software.

  • Create Converter object to convert JSON file
  • Instantiate SpreadsheetConvertOptions class
  • Call Convert method of Converter class instance for conversion to XLSX

Remote XLSB Conversion Simplified

With Conholdate.Total for .NET, developers can follow a simple method to load and convert XLSB documents from remote locations and cloud-based document storage resources. Supported sources include Amazon S3, Microsoft Azure Blob, FTP, local disk, stream, and simple URLs. By specifying the appropriate method to obtain the remotely located document stream, programmers can easily pass it on to the Converter class as a constructor, enabling seamless conversion capabilities.

The Conholdate.Total for .NET APIs seamlessly integrate with various application types based on the .NET Framework 2.0 or later, including Windows Forms, ASP.NET, WPF, and WCF. Enjoy the native compatibility and leverage the APIs’ functionality within your preferred .NET application environment.


// Supports converting documents between Word, Excel, PowerPoint, Project, Images, Web, Email, Metafiles and Diagram file formats.
// Supported file formats: https://docs.groupdocs.com/conversion/net/supported-document-formats/
using (Converter converter = new Converter("data.json"))
{
SpreadsheetConvertOptions options = new SpreadsheetConvertOptions();
converter.Convert("converted.xlsx", options);
}

Frequently Asked Questions (FAQs)

Can I convert XLSB files to XLS online without paying anything?

Yes. You can easily convert XLSB files to XLS online using our completely free converter. It requires no software installation or user registration—just upload your file, convert and download your XLS.

How do I convert XLSB files to XLS using C# code?

Converting XLSB files to XLS using C# is straightforward with the Conholdate.Total for .NET APIs. We provide practical, ready-to-use code samples and clear documentation to simplify the integration into your applications.

Do I need to have Microsoft XLSB installed to perform XLSB-to-XLS conversions with C#?

No. you don’t need Microsoft XLSB installed. Conholdate.Total APIs operate independently, allowing you to convert XLSB documents directly to XLS format within your .NET applications without XLSB itself.

How quickly does your online XLSB-to-XLS converter work?

Our online converter is built for speed and efficiency. Most conversions take just a few seconds—even when dealing with larger or more complex XLSB files.

Will the online converter preserve formulas and hyperlinks from my XLSB files?

Our online XLSB-to-XLS converter keeps all your hyperlinks, images, charts and formatting intact. However, XLSB formulas are converted into their resulting values in the final XLS, ensuring an accurate and readable document.

Can I automate the XLSB-to-XLS conversion on my own servers?

Definitely! You can automate the XLSB-to-XLS conversion process using Conholdate.Total for .NET. It’s perfect for handling batch jobs, scheduled conversions, or integrating seamlessly into your backend workflows.

Is it safe to upload my XLSB files for online XLS conversion?

Your security and privacy are extremely important to us. Uploaded files are securely processed and automatically deleted from our servers shortly afterward, ensuring your data remains confidential.

Can I convert several XLSB sheets into a single XLS using C#?

Yes. you can. Conholdate.Total allows you to select and combine multiple sheets from your XLSB workbook into a single XLS document effortlessly.

Does Conholdate.Total for .NET support batch XLSB files conversion to other formats?

Yes. Conholdate.Total for .NET supports batch conversion of XLSB documents, allowing developers to convert multiple files at once.

Does the XLSB to XLS API work with .NET Core, .NET 5 and newer versions?

Absolutely. Our XLSB-to-XLS conversion API supports all modern .NET frameworks, including .NET Core, .NET 5, .NET 6, and even .NET 7. This gives you flexibility regardless of your project environment.

Can I add watermarks or passwords to XLSs created from XLSB files?

Yes. Conholdate.Total provides convenient features to enhance your XLS documents. You can add watermarks for branding or confidentiality, apply password protection, and even customize other XLS security settings easily during the conversion process.

What file formats for documents and images are supported by Conholdate.Total for .NET?

Conholdate.Total for .NET integrates APIs from Aspose and GroupDocs to enable .NET programmers to perform various document manipulation actions on a wide range of file formats including Word, Excel, PDF, PowerPoint, Visio, HTML and images in .NET, C#, ASP.NET and VB.NET applications.

Can I convert password-protected XLSB files to XLS in .NET?

Yes. Conholdate.Total for .NET supports the conversion of password-protected XLSB files. With built-in methods to handle encrypted documents, you can securely convert sensitive files to XLS while preserving their confidentiality and integrity.

What are the licensing costs for Conholdate.Total’s XLSB to XLS conversion API?

Conholdate.Total for .NET offers a fully functional free trial version for 30 days. Paid plans are available for higher usage levels. Developers should carefully review the pricing and licensing terms before using the document conversion API.

What is XLSB file format?

The XLSB file format is a binary file format used for Microsoft Excel workbooks. Unlike the XLSX and XLSM file formats, which are based on the Open XML format, XLSB is a binary format that stores data in a binary structure. This binary structure allows for faster file processing and improved performance compared to the XML-based formats.

XLSB files contain spreadsheet data, including worksheets, formulas, charts, and other elements commonly found in Excel workbooks. The binary format optimizes storage and calculation efficiency, making it well-suited for large datasets and complex calculations. It also provides better data integrity and recovery capabilities, as the binary structure reduces the risk of file corruption.

Due to its binary nature, XLSB files are not easily readable or editable by humans. They are primarily intended for use by Excel and other applications that can read and process the binary format. However, Excel provides full compatibility and support for opening, editing, and saving XLSB files.

The advantages of using XLSB files include faster file operations, reduced file size compared to XML-based formats, and improved performance in terms of opening, saving, and recalculating complex workbooks. XLSB files are particularly useful for workbooks that involve large amounts of data or complex formulas.

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What is XLS file format?

The XLS file format is a file format used by Microsoft Excel, an application for spreadsheet and graphing. It is an updated version of the XLS file format that was introduced in Excel 97. The XLS file format is a spreadsheet format and can be used to store data in cells arranged in a tabular format. It can be used to create charts and graphs, along with other features such as formulas, variables and macros.

XLS files can be protected with passwords and encryption, allowing users to protect sensitive data. They also support multiple sheets, so they can contain large amounts of data. XLS files can be opened and read by a wide variety of software, including Microsoft Excel and other spreadsheet applications.

XLS files are compatible with a variety of operating systems and devices, making them a popular choice for storing, sharing and transferring data. They are usually used for data analysis, report-building, simulations and other business operations.

XLS files are also used for statistical analysis. They are used to visually display data in the form of charts, graphs and tables. They can also be used to store and analyze large amounts of data.

Overall, the XLS file format is an important file format used for storing and sharing data. It is used for data storage, analysis and report-building. It is compatible with a variety of different operating systems and devices, making it a popular choice for businesses.

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Popular XLSB Conversion Options with .NET

Convert XLSB to PDF

(Portable Document Format)

Convert XLSB to WORD

(Word Processing Files)

Convert XLSB to IMAGE

(Digital Image Files)

Convert XLSB to DOC

(Microsoft Word Binary Format)

Convert XLSB to DOCX

(Office 2007+ Word Document)

Convert XLSB to DOCM

(Microsoft Word 2007 Marco File)

Convert XLSB to DOT

(Microsoft Word Template Files)

Convert XLSB to DOTX

(Microsoft Word Template File )

Convert XLSB to DOTM

(Microsoft Word 2007+ Template File)

Convert XLSB to TXT

(Text Document)

Convert XLSB to RTF

(Rich Text Format)

Convert XLSB to HTML

(Hyper Text Markup Language)

Convert XLSB to HTM

(Hypertext Markup Language File)

Convert XLSB to MHTML

(Web Page Archive Format)

Convert XLSB to MHT

(MHTML Web Archive)

Convert XLSB to XLS

(Microsoft Excel Spreadsheet (Legacy))

Convert XLSB to XLSX

(Open XML Workbook)

Convert XLSB to XLSM

(Macro-enabled Spreadsheet)

Convert XLSB to XLSB

(Excel Binary Workbook)

Convert XLSB to XLT

(Excel 97 - 2003 Template)

Convert XLSB to XLTX

(Excel Template)

Convert XLSB to XLTM

(Excel Macro-Enabled Template)

Convert XLSB to XLAM

(Excel Macro-Enabled Add-In)

Convert XLSB to CSV

(Comma Seperated Values)

Convert XLSB to TSV

(Tab Seperated Values)

Convert XLSB to DIF

(Data Interchange Format)

Convert XLSB to SXC

(StarOffice Calc Spreadsheet)

Convert XLSB to FODS

(OpenDocument Flat XML Spreadsheet)

Convert XLSB to PPT

(Microsoft PowerPoint 97-2003)

Convert XLSB to PPTX

(Open XML presentation Format)

Convert XLSB to PPS

(PowerPoint Slide Show)

Convert XLSB to PPSX

(PowerPoint Slide Show)

Convert XLSB to PPSM

(Macro-enabled Slide Show)

Convert XLSB to POT

(Microsoft PowerPoint Template Files)

Convert XLSB to POTX

(Microsoft PowerPoint Template Presentation)

Convert XLSB to PPTM

(Macro-enabled Presentation File)

Convert XLSB to POTM

(Microsoft PowerPoint Template File)

Convert XLSB to ODT

(OpenDocument Text File Format)

Convert XLSB to OTT

(OpenDocument Standard Format)

Convert XLSB to OTP

(OpenDocument Standard Format)

Convert XLSB to ODP

(OpenDocument Presentation Format)

Convert XLSB to ODS

(OpenDocument Spreadsheet)

Convert XLSB to EMZ

(Windows Compressed Enhanced Metafile)

Convert XLSB to WMZ

(Compressed Windows Metafile)

Convert XLSB to SVG

(Scalar Vector Graphics)

Convert XLSB to SVGZ

(Compressed Scalable Vector Graphics)

Convert XLSB to XPS

(XML Paper Specifications)

Convert XLSB to TEX

(LaTeX Source Document)

Convert XLSB to DCM

(DICOM Image)

Convert XLSB to WMF

(Windows Metafile)

Convert XLSB to EMF

(Enhanced Metafile Format)

Convert XLSB to BMP

(Bitmap Image File)

Convert XLSB to PNG

(Portable Network Graphic)

Convert XLSB to GIF

(Graphical Interchange Format)

Convert XLSB to JPEG

(Joint Photographic Expert Group Image)

Convert XLSB to JPG

(Joint Photographic Expert Group Image)

Convert XLSB to TIFF

(Tagged Image File Format)

Convert XLSB to WEBP

(Raster Web Image Format)

Convert XLSB to JP2

(JPEG 2000 Core Image)

Convert XLSB to TGA

(Truevision Graphics Adapter)

Convert XLSB to PSB

(Photoshop Large Document Format)

Convert XLSB to PSD

(Photoshop Document)

Convert XLSB to EPUB

(Open eBook File)

Convert XLSB to MD

(Markdown Language)

Convert XLSB to JSON

(JavaScript Object Notation File)

Convert XLSB to FODP

(Formula One for Data Presentation)

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