Sign XLSX File with Digital Signatures in .NET
Digitally sign and verify signatures in a XLSX file and various other document formats within C#, ASP.NET, VB.NET & Xamarin applications. Implement Barcode, Text, Image, Metadata, QR Code, Form Field and stamp signatures in multiple forms by setting up customized text, font style, colors and adjusting advanced e-signatures properties in the document.
DownloadHow to Digitally Sign XLSX Files in C#
Conholdate.Total for .NET supports signing XLSX documents with digital signatures using a few lines of C# .NET code.
- Instantiate Signature with input document
- Instantiate DigitalSignOptions object with certificate details
- Call Sign method of Signature class and pass DigitalSignOptions to it
- Set options to view signed document as HTML
APIs Download & Installation Instructions
The following piece of code requires GroupDocs.Signature & GroupDocs.Viewer namespaces. You can get the respective files from the downloads or fetch the whole package from NuGet.
Sign your digtial documents with Barcode, Text, Image, Metadata, QR Code, Form Field and stamp signatures on operating systems such as Windows, Linux or macOS while using platforms such as Windows Azure, Mono and Xamarin.
Search Barcode Signatures in PDF File in C#
Search a wide variety of e-signature types from a digitally signed PDF document by setting up advanced signatures manipulation options and search filters to get a list of electronic signatures that match with the search criterion.
- Instantiate Signature with input document
- Instantiate DigitalSearchOptions object as per requirements and specified search options
- Call Search method of Signature class instance and pass DigitalSearchOptions to it
Sign, Verify, Update & Delete Signatures
Using Conholdate.com APIs – developers can implement different signatures customization options to add and view e-signatures from a wide range of popular document file formats.
Users can also search and verify some specific signatures from an already signed digital document; manipulate signatures based on size or textual content and delete any signatures from the same document.
What is XLSX file format?
The XLSX file format is a widely used file format for storing spreadsheet data. It was introduced by Microsoft as part of their Microsoft Office suite, specifically for the Excel application. XLSX stands for Excel Open XML Spreadsheet. Unlike its predecessor, the XLS format, which was based on a proprietary binary file structure, XLSX is based on the Open XML file format.
XLSX files are structured as a collection of XML files compressed into a single ZIP archive. This XML-based structure allows for more efficient storage and faster data processing. XLSX files store data in a tabular format, with rows and columns that can contain text, numbers, formulas, and other types of data. They also support formatting options such as cell styles, fonts, colors, and conditional formatting.
One of the advantages of the XLSX format is its compatibility across different platforms and software applications. Many spreadsheet programs, including Microsoft Excel, Google Sheets, and LibreOffice Calc, can open and edit XLSX files. This makes it easy to share and collaborate on spreadsheet data with others, regardless of the software they are using.
XLSX files also offer features like data validation, filtering, sorting, and the ability to create charts and graphs based on the data. Additionally, XLSX files can contain multiple sheets within a single file, allowing users to organize and manage different sets of data within a single document.
LearnPopular Document Signature Options with .NET
(Portable Document Format)
(Word Processing Files)
(Spreadsheet Files)
(Microsoft Word Binary Format)
(Office 2007+ Word Document)
(Microsoft Word 2007 Marco File)
(Microsoft Word Template Files)
(Microsoft Word 2007+ Template File)
(Microsoft Word Template File )
(Microsoft Excel Spreadsheet (Legacy))
(Excel Binary Workbook)
(Macro-enabled Spreadsheet)
(Open XML Workbook)
(Excel Macro-Enabled Template)
(Excel Template)
(Microsoft PowerPoint 97-2003)
(Open XML presentation Format)
(PowerPoint Slide Show)
(PowerPoint Slide Show)
(Microsoft PowerPoint Template Presentation)
(Microsoft PowerPoint Template File)
(Corel Metafile Exchange Image)
(Bitmap Image File)
(Joint Photographic Expert Group Image)
(Graphical Interchange Format)
(Portable Network Graphic)
(Raster Web Image Format)
(Tagged Image File Format)
(Windows Metafile)
(Photoshop Document)
(Scalar Vector Graphics)
(OpenDocument Presentation Format)
(OpenDocument Standard Format)
(OpenDocument Spreadsheet)
(OpenDocument Spreadsheet Template)
(OpenDocument Text File Format)
(OpenDocument Standard Format)
(Digital Image Files)
