JoshClose/CsvHelper

Lightweight and fast library written in C# for reading Microsoft Excel files

CSV data manipulation made easy in PHP

Full featured CSV parser with simple api and tested against large datasets.

Lightweight, fast and native cross-platform processing tool for importing and exporting spreadsheet documents.

A suite of utilities for converting to and working with CSV, the king of tabular file formats.

ClosedXML is a .NET library for reading, manipulating and writing Excel 2007+ (.xlsx, .xlsm) files. It aims to provide an intuitive and user-friendly interface to dealing with the underlying OpenXML API.

a .NET library that can read/write Office formats without Microsoft Office installed. No COM+, no interop.

Fast and powerful CSV (delimited text) parser that gracefully handles large files and malformed input

Excel Workbook Manager