ExcelDataReader/ExcelDataReader
Lightweight and fast library written in C# for reading Microsoft Excel files observed · 2026-08-28
Health v2 · maintenance only
81/100
- Activity 91
- Release rhythm 57
- Longevity 100
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-03. Adoption (stars, forks) is never an input.
- gap_med: 267
- age_days: 4422
- days_rel: 78
- days_push: 58
- n_releases_24m: 2
Adoption not part of the score
4409 stars · 1011 forks observed · 2026-08-28
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded
A lightweight and fast C# library for reading Microsoft Excel files (.xlsx, .xlsb, .xls) and CSV files. It provides a low-level reader interface plus an optional DataSet extension for populating System.Data.DataSet objects.
Use cases
- read xlsx files in C#
- parse legacy xls spreadsheets in .NET
- import Excel data into a DataSet
- read xlsb binary Excel workbooks
- parse CSV files with encoding fallback
- extract spreadsheet data in a .NET application
When to choose
- you need read-only Excel support in .NET with no dependencies on Office or COM interop
- you must support old BIFF2-BIFF8 .xls files as well as modern xlsx/xlsb
- you want a lightweight, fast streaming reader rather than a full spreadsheet library
When to avoid
- you need to create, edit, or write Excel files
- you need formatting, charts, or formula evaluation
- you are not on a .NET-compatible platform
Facets
library · maturity stable
parser file-system files developer-tools spreadsheets dotnet cross-platform excel xlsx xlsb xls csv csharp data-import spreadsheet-reader
1 source
- readme: https://github.com/ExcelDataReader/ExcelDataReader · fetched 2026-08-28 · d53ff82dc2b2
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| ExcelDataReader/ExcelDataReader | main | 81 |
For agents
markdown · JSON · MCP: product_card(name="ExcelDataReader/ExcelDataReader")
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem