GemBox.Bundle is a package of .NET components that enable you to process office files (spreadsheets, documents, presentations, and emails) simply and efficiently. With our components you get fast and reliable results in an easy–to–use format. Only the .NET framework is required, so you can deploy your application easily without having to think about other licenses. And they’re up to 20 times faster than Microsoft automation!

GemBox.Bundle includes:
GemBox.Spreadsheet 4.3
GemBox.Document 2.9
GemBox.Pdf 1.3
GemBox.Presentation 2.3
GemBox.Email 1.3

Delphi and C++ Builder jаvascript Object Notation (JSON) library.. full JSON supported: literals, numbers, strings, arrays and objects.

Read and modify JSON files
Create new JSON files
Full JSON supported: literals, numbers, strings, arrays and objects
Date/time encoding and decoding supported
Customizable output
Provides in-memory and streaming JSON parsers and generators
Supports Windows, macOS, iOS and Android
Available for Delphi/C++ Builder 5 - 10.3 and Lazarus 2.0.6
Source code included in registered version
Royalty free distribution in applications

Digital Signal Processing library for Delphi and C++ Builder.
uses General Purpose FFT Package
supports Windows 32 and Windows 64
available for Delphi/C++ Builder 6 - 10.3
source code included in registered version
royalty free distribution in applications

Read and modify existing CSV files:

with TCsv.Create do
try
LoadAnsiFile('c:\data.csv');
ShowMessage(ToString);

if (LineCount > 1) and (FieldCount[1] > 2) then
Fields[1, 2] := 'New value';
ShowMessage(ToString);
finally
Free;
end;

Delphi and C++ Builder library for creating, processing and rendering PDF documents.

uses PdfBox-Android library
available for Delphi/C++ Builder 10 - 10.3
royalty free distribution in applications

The DevExpress WinForms Subscription ships with a comprehensive suite of Office-inspired user interface components. From our award-winning Data Grid and Ribbon to our Excel-inspired Spreadsheet and Word-inspired Rich Text Editor for Windows Forms, this subscription has everything you'll need to create apps that are both beautiful and easy-to-use.

Convert Excel spreadsheets to calculating web pages. With this powerful add-in for Excel, you can convert spreadsheets to modern web pages with functionality that would be very costly to develop with the help of a professional web designer. Help your users buy the right volume of seeds for their garden, select the best printer or order 200 customize rubber tubes.

With FastReport.Net, you can create application-independent .Net reports. In other words, FastReport.Net can be used as a standalone reporting tool.

Includes powerful visual report designer for creating and modifying the reports. Your application can run the designer from the code.
Includes online report designer for ASP.Net (only in Enterprise edition)
Connect to any database, use any of its tables or create queries
Add dialogue form(s) to your report to prompt for parameters before running a report
Using built-in script you can manage the interactions with dialogue form controls and perform complex data handling
Finally, view the result and print or export it to many common document formats

yFiles.NET is an extensive Windows Forms programming library for the Microsoft .NET environment. Its top-notch data structures and algorithms for viewing and editing diagrams allow you to automatically arrange complex graphs, diagrams, and networks with the click of a button.

dbForge Studio for SQL Server is a powerful IDE for SQL Server management, administration, development, data reporting, analysis, and a lot more. SQL developers and DBAs performing complex database tasks can use the GUI tool to speed up almost any database experience, such as designing databases, writing SQL code, comparing databases, synchronizing schemas and data, generating meaningful test data, and much more.