Top 20 NuGet fixed Packages

Open Source library for automatic formatted file read/write operations www.filehelpers.net
Reads and writes CSV, fixed-length and other flat file formats with a focus on schema definition, configuration and speed. Supports mapping directly between files and classes.
A string of fixed length.
FluentFiles is fast-working open-source library for reading/writing plain files
A .NET port of BeanIO which perfectly fits into the .NET world.
FlatFile is fast-working open-source library for reading/writing plain files
Fixed Data Table (fixed-data-table) binding library for Bridge.NET projects.
Fixed Data Table 2 (fixed-data-table-2) binding library for Bridge.NET projects.
FluentFiles.FixedLength is fast-working open-source library for reading/writing fixed-length plain files
Core library for FluentFiles.[name].Attributes assemblies
FlatFile.FixedLength is fast-working open-source library for reading/writing fixed-length plain files
Core library for FlatFile.[name].Attributes assemblies
Core library for FluentFiles assemblies
Readers and writers for CSV and fixed-length file formats. Supports both synchronous and asynchronous operation, data annotations, and wicked fast object serialization.
a fixed size high performant in memory cache
Readers and writers for CSV and fixed-length file formats. Supports both synchronous and asynchronous operation, data annotations, and wicked fast object serialization.
Core library for FlatFile assemblies
a simple C# project for reading and writing fixed-width files with headers and footers.
A mobile-first CSS framework that supports responsive mobile first and fixed desktop layouts.
Open Source library for automatic formatted file read/write operations www.filehelpers.net. Unofficial .NET Standard 2.0 / .NET Core port.