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.

DotLiquid by: Tim Jones, Alessandro Petrelli

DotLiquid is a templating system ported to the .NET framework from Ruby’s Liquid Markup.

EPPlus by: EPPlus Software AB

A spreadsheet library for .NET framework and .NET core

Fable by: Alfonso García-Caro Núñez

F# to JS compiler

FluentAssertions by: Dennis Doomen, Jonas Nyrup, Xceed

A very extensive set of extension methods that allow you to more naturally specify the expected outcome of a TDD or BDD-style unit tests. Works with .NET Standard 2.0 and higher, .NET Framework 4.7 and higher and .NET 6 and higher. Supports the unit test frameworks MSTest2, NUnit3, NUnit4, XUnit2, XUnit3, MSpec and TUnit. IMPORTANT: This version is free for open-source projects and non-commercial use, but commercial use requires [a paid license](https://xceed.com/products/unit-testing/fluent-assertions/). Check out the [license page](LICENSE.md) for more information.

FluentValidation by: Jeremy Skinner

A validation library for .NET, Silverlight and WP7 that uses a fluent interface to construct strongly-typed validation rules.

Grpc.AspNetCore by: The gRPC Authors

gRPC meta-package for ASP.NET Core

Grpc.AspNetCore.Server by: The gRPC Authors

gRPC support for ASP.NET Core

Grpc.Net.Client by: The gRPC Authors

.NET client for gRPC

Grpc.Tools by: The gRPC Authors

gRPC and Protocol Buffer compiler for managed C# and native C++ projects. Add this package to a project that contains .proto files to be compiled to code. It contains the compilers, include files and project system integration for gRPC and Protocol buffer service description files necessary to build them on Windows, Linux and MacOS. Managed runtime is supplied separately in the Grpc.Core package.

Handlebars.Net by: Rex Morgan

Blistering-fast Handlebars.js templates in your .NET application.

HtmlAgilityPack by: Simon Mourrier, Jeff Klawiter, Stephan Grell, ZZZ Projects

This is an agile HTML parser that builds a read/write DOM and supports plain XPATH or XSLT (you actually don't HAVE to understand XPATH nor XSLT to use it, don't worry...). It is a .NET code library that allows you to parse "out of the web" HTML files. The parser is very tolerant with "real world" malformed HTML. The object model is very similar to what proposes System.Xml, but for HTML documents (or streams).

Humanizer by: Mehdi Khalili

A micro-framework that turns your normal strings, type names, enum fields, date fields ETC into a human friendly format

Humanizer.Core by: Mehdi Khalili, Claire Novotny

Humanizer core package that contains the library and the neutral language (English) resources

Humanizer.Core.bg by: Mehdi Khalili, Claire Novotny

Humanizer Locale Bulgarian (bg)

Humanizer.Core.bn-BD by: Mehdi Khalili, Claire Novotny

Humanizer Locale Bangla (Bangladesh) (bn-BD)

Humanizer.Core.cs by: Mehdi Khalili, Claire Novotny

Humanizer Locale Czech (cs)

Humanizer.Core.fa by: Mehdi Khalili, Claire Novotny

Humanizer Locale Persian (fa)

Humanizer.Core.ja by: Mehdi Khalili, Claire Novotny

Humanizer Locale Japanese (ja)

Humanizer.Core.ko-KR by: Mehdi Khalili, Claire Novotny

Humanizer Locale Korean (South Korea) (ko-KR)