A Toolkit/Component Suite by Syncfusion, Inc.

Essential PDF
Essential PDF is a .NET library that can produce Adobe PDF files. It features a full fledged object model for the easy creation of PDF files from any .NET language. It does not use any external libraries and is built from scratch in C#. It can be used on on the server side (ASP.NET or any other environment) or with Windows Forms applications.

Essential XlsIO
Essential XlsIO is a .NET library that can read and write Microsoft Excel files (BIFF 8 format). It features a full fledged object model just like the Microsoft Office COM libraries. It does not use COM interop and is built from scratch in C#. It can be used on systems that do not have Microsoft Excel installed, making it an excellent report engine for tabular data.

Essential Grouping
Essential Grouping is a high performance grouping engine that can group any list of data. Essential Grouping is extremely optimized and can handle large amounts of dynamic data. It features support for related data and filters. All aspects of the grouping engine are extensible and users can add functionality as needed.

Essential Calculate
Essential Calculate allows you to add extensive calculation support to your own business objects. Easily set up forms that have calculation dependencies among various controls on the form. Essential Calculate comes with a function library of more than 150 entries. And it supports cross sheet references. When used in conjunction with Essential ExcelRW, you can fully load, manipulate and compute Excel spreadsheets without any dependence upon Excel.

Essential DocIO
Essential DocIO is a .NET library that can read and write Microsoft Word files. It features a full-fledged object model similar to the Microsoft Office COM libraries. It does not use COM interop and is built from scratch in C#. It can be used on systems that do not have Microsoft Word installed.