Arbitrary-Precision Number Library
A C# library that supports arbitrary-precision binary and decimal floating-point numbers and rational numbers with arbitrary-precision components, and supports arithmetic with these numbers.
CBOR (Concise Binary Object Representation)
A C# implementation of Concise Binary Object Representation (CBOR), a general-purpose binary data format defined in RFC 7049.
Encoding Library
A portable library for .NET that implements character encodings used in Web pages and email.