Top 20 NuGet ienumerable Packages

Collection extensions and custom collections for .NET.
わたしが欲しいと思った適当な機能たち for C#
A collection of extension methods for better string representations (e.g. IEnumerable and specializations for IList, ISet and IDictionary, TimeSpan).
my useful extension methods Of IEnumerable.
a collection of my useful extension methods.
Helper methods for operating on objects of type IEnumerable.
Provides collection-related convenience/helper methods.
The "classy" way to filter collections.
A collection of extension methods to IQueryable and IEnumerable that enable easy and performance Soundex searches
A collection of extension methods to IQueryable and IEnumerable that enable easy and performance Levenshtein searches
a collection of my useful extension methods.
LINQ-like helpers and extension methods for IEnumerable. Type filters, Option-type conversions, flattening enumerables, fast single-element enumerables, and others.
The framework BitArray is helpful but it has a serious flaw in the fact that it is not immutable. This is the primary motivation for working on this package in order to achieve just such an ImmutableBitArray. Reflexive operations can modify an instance but otherwise bitwise operations should yield a...
Nice LINQ extensions.
iTin Export Engine Core, contains a tab-separated values (txt), comma-seprated values (csv), XML spreadsheet 2003 (xml) and SQL Script (sql) native writers
Linq extensions for ordered sequences. Provides better perfomance in comparison to standard extensions. Provides Concat, Distinct, Except, GroupBy, Intersect, Join, GroupJoin and Union.
SeedPacket adds a .seed() method onto IEnumerable for quickly seeding data. Similar to a LINQ extension, it populates lists with realistic data. Ex: var mylist = new List<Item>().Seed(). It is easy to use, with a customizable, and powerful rules engine that keys off the datatype or interface, and ...
Extensions to transform IEnumerable into other generic collection types, including async versions.
included all my useful extension methods.
IAsyncEnumerable interface definition, and some LINQ function for it