Crc32C.NET by: Robert Važan

Hardware-accelerated CRC-32C (Castagnoli) with super fast software fallback for .NET projects. Don't confuse with ordinary CRC-32. Automatically selects 32-bit or 64-bit embedded native library for maximum performance.

CronExpressionDescriptor by: Brady Holt, Renato Lima, Ivan Santos, Siarhei Khalipski, Mustafa SADEDİL, Star Peng, TotalMace, LbISS, Arnaud TAMAILLON, Michael Schuler, Taras(tbudurovych), rinaldihno

A library that converts cron expressions into human readable descriptions. Supports 14 languages: English, Brazillian, Spanish, Norwgian, Turkish, Dutch, Chinese Simplified, Russian, French, German, Ukrainian, Polish, Romanian and Italian.

Cronos by: Andrey Dorokhov, Sergey Odinokov

A fully-featured .NET library for parsing cron expressions and calculating next occurrences that was designed with time zones in mind and correctly handles daylight saving time transitions.

CSharpFunctionalExtensions by: Vladimir Khorikov

CSharpFunctionalExtensions - functional extensions for C#

CsvHelper by: Josh Close

A library for reading and writing CSV files. Extremely fast, flexible, and easy to use. Supports reading and writing of custom class objects.

Dapper by: Sam Saffron, Marc Gravell, Nick Craver

A high performance Micro-ORM supporting SQL Server, MySQL, Sqlite, SqlCE, Firebird etc..

Database by: Gil Sani

Create JSON based database on any device.

DBreeze by: Oleksiy Solovyov / Ivars Sudmalis

DBreeze database key features: - Embedded .NET family assembly, platform independent and without references to other libraries. - Multi-threaded, ACID compliant, with a solution for deadlocks resolving/elimination, parallel reads and synchronized writes/reads. - No fixed scheme for table names (construction and access on the fly). - Tables can reside in mixed locations: different folders, hard drives, memory, in-memory with disk persistence. - Liana-Trie indexing technology. Database indexes (keys) never need to be defragmented. Speed of insert/update/remove operations doesn't change during the time. - Ability to access Key/Value pair of a table by physical link, that can economize time for joining necessary data structures. - No limits for database size (except "long" size for each table and physical resources constraints). - Low memory and physical space consumption, also while random inserts and updates. Updates reside the same physical space, when possible or configured. - High performance of CRUD operations. When you need, unleash DBreeze power and get 500000 key/value pairs insert or 260K updates per second per core into sorted table on the hard drive of standard PC (benchmark in year 2012). - High speed of random keys batch inserts and updates (update mode is selectable). - Range selects / Traversing (Forward, Backward, From/To, Skip, StartsWith etc). Remove keys, change keys. - Keys and values, on the low level, are always byte arrays. - Max. key size is 65KB, max. value size is 2GB. Value can be represented as a set of columns, where can be stored data types of fixed or dynamic length. Every dynamic datablock (BLOB) can be of size 2GB. - Rich set of conversion functions from/to between byte[] and other data types. - Nested / Fractal tables which can reside inside of master tables values. - Incremental backup/restore option. - Integrated text-search subsystem (full-text/partial). - Integrated object database layer. - Fast multi-parameter search subsystem with powerful query possibilities. - Integrated Vector Database and vector similarity search engine (embedding vectors store/search). - Integrated binary and JSON serializer Biser.NET - High Availability, Redundancy and Fault Tolerance via Raft.NET - DBreeze is a foundation for complex data storage solutions (graph/neuro, object, document, text search etc. data layers). Please, study documentation to understand all abilities of DBreeze. hhblaze@gmail.com

dbup by: Paul Stovell, Jim Burger, Jake Ginnivan, Damian Maclennan

This package exists to allow easy upgrades from pre-4.0 version This package was split into two packages dbup-core and dbup-sqlserver so that non SQL Server packages did not need to also reference the SQL Server code. Uninstall this package and install dbup-sqlserver, or the package for the server(s) you are targeting instead!

dbup-core by: Paul Stovell, Jim Burger, Jake Ginnivan, Damian Maclennan

DbUp makes it easy to deploy and upgrade SQL Server databases by running change scripts. This is the core library and should be used in conjunction with the database specific package (eg dbup-sqlserver, dbup-mysql)

dbup-sqlserver by: Paul Stovell, Jim Burger, Jake Ginnivan, Damian Maclennan

DbUp makes it easy to deploy and upgrade SQL Server databases by running change scripts.

DeltaCompressionDotNet by: ta.speot.is

A managed wrapper around Microsoft's delta compression application programming interfaces.

DiffPlex by: Matthew Manela

DiffPlex is a diffing library that allows you to programatically create text diffs. DiffPlex is a fast and tested library.

DockPanelSuite by: Weifen Luo and other contributors

The docking library for .Net Windows Forms development which mimics Visual Studio .Net.

DockPanelSuite.ThemeVS2003 by: Weifen Luo and other contributors

Visual Studio 2003 theme for DockPanel Suite.

DockPanelSuite.ThemeVS2005 by: Weifen Luo and other contributors

Visual Studio 2005 theme for DockPanel Suite.

DockPanelSuite.ThemeVS2012 by: Weifen Luo and other contributors

Visual Studio 2012 themes for DockPanel Suite.

DockPanelSuite.ThemeVS2013 by: Weifen Luo and other contributors

Visual Studio 2013 themes for DockPanel Suite.

DocumentFormat.OpenXml by: Microsoft

The Open XML SDK provides tools for working with Office Word, Excel, and PowerPoint documents. It supports scenarios such as: - High-performance generation of word-processing documents, spreadsheets, and presentations. - Populating content in Word files from an XML data source. - Splitting up (shredding) a Word or PowerPoint file into multiple files, and combining multiple Word/PowerPoint files into a single file. - Extraction of data from Excel documents. - Searching and replacing content in Word/PowerPoint using regular expressions. - Updating cached data and embedded spreadsheets for charts in Word/PowerPoint. - Document modification, such as removing tracked revisions or removing unacceptable content from documents.

DocumentFormat.OpenXml.Framework by: Microsoft

The Open XML SDK provides tools for working with Office Word, Excel, and PowerPoint documents. It supports scenarios such as: - High-performance generation of word-processing documents, spreadsheets, and presentations. - Populating content in Word files from an XML data source. - Splitting up (shredding) a Word or PowerPoint file into multiple files, and combining multiple Word/PowerPoint files into a single file. - Extraction of data from Excel documents. - Searching and replacing content in Word/PowerPoint using regular expressions. - Updating cached data and embedded spreadsheets for charts in Word/PowerPoint. - Document modification, such as removing tracked revisions or removing unacceptable content from documents.