a .NET library that can read/write Office formats without Microsoft Office installed. No COM+, no interop.

Use the Spreadsheet Document API to manage spreadsheet documents in code.

Use the Office File API to create thumbnail images for Excel, Word and PDF documents.

Use the Azure Key Vault API to sign a PDF document.

Integrate AI capabilities into a DevExpress-powered Office File API Web API application.

Use the Word Processing Document API to create a complex table in a document.

Use the DOCVARIABLE field to insert dynamic content into the document.

Obtain a checked appearance name for a check box and specify the check box value.

Enable Track Changes in a document to retrieve, accept or reject revisions.

Use a PdfGraphics object to add interactive form fields to a PDF document.

Create a custom timestamp client based on the Bouncy Castle C# API.

Implement a PDF viewer in an ASP.NET web application.

Extract the text of a PDF document and count the words' occurrences in a document text.

Export a PDF document to multi-page Tiff and bitmap images.

Create an ASP.NET Core Web API application that uses the Office File API library as a server-side engine.

Simple C# Excel APIs for reading and writing without Microsoft Office installed.

Create a simple progress dialog that indicates the progress of load and PDF export operations.

Use AJAX requests to modify the Spreadsheet control's content.

Open and save password encrypted files in binary (.xls, .xlsb) and OpenXml (.xlsx) formats.

Create a Blazor Server application that uses the Spreadsheet Document API to build a loan amortization schedule.