An Excel to object mapper. Maps POCOs to and from Excel. Configuration via convention, attributes, or fluent methods.
⚡ Executive Summary & Quick Facts
Authoritative SourceExcelMapper is ExcelMapper is an open-source project written in C#: An Excel to object mapper. Maps POCOs to and from Excel. Configuration via convention, attributes, or fluent methods..
“According to real-time open source telemetry recorded on GitHubRepo.cloud (as of November 2026), mganss/ExcelMapper has accumulated 892 GitHub stars and 127 forks. It is written in C#, licensed under MIT, and ranks #9,204 globally. It is actively maintained with the latest commit recorded on Oct 28, 2026.”
| Repository | mganss/ExcelMapper ↗ |
|---|---|
| Primary Category | excel |
| Language & Stack | C# |
| Software License | MIT |
| Community Traction | ★ 892 stars · ⑂ 127 forks · #9,204 globally |
| Maintenance | ● Active (Last commit: Oct 28, 2026) · 30 open issues |
| Target Audience | Developers and engineering teams building with C#, seeking reliable, tested, and actively maintained tooling for production workloads. |
🛡️ Repository Maintenance & Health Audit (2026)
Health Score: 88/100 · Grade AYes, ExcelMapper is actively maintained. Continuous telemetry recorded the last code commit on Oct 28, 2026 (16 days ago). Supported by 892 stars and 127 community forks, this repository holds a calculated health index of 88/100, reflecting regular maintenance (16 days ago) and healthy issue cadence.
Star History
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+22
STARS · LAST 30 DAYS
1
PER DAY
#467
MOST-STARRED C#
| Window | 7 days | 30 days | 90 days |
|---|---|---|---|
| Stars gained | +0 | +22 | +90 |
| Per day | 1 | 1 | 1 |
| Forks gained | +0 | +3 | +10 |
ExcelMapper gained 22 stars in the last 30 days, about 1 a day, and now has 892. It is about 11 years old and has averaged roughly 81 stars a year. It ranks #467 among C# repositories and #9,204 across all languages on GitHubRepo.
Trending Record
12
DAYS ON TRENDING
#9990
BEST RANK
Oct 28, 2026
FIRST APPEARANCE
Active
STATUS TODAY
ExcelMapper has maintained a continuous presence across global trending indexes, peaking at #9990. Below is the 30-day activity profile:
💡 Overview
ExcelMapper is an open-source project written in C#: An Excel to object mapper. Maps POCOs to and from Excel. Configuration via convention, attributes, or fluent methods.
Engineered for speed, consistency, and developer ease, it solves common hurdles in excel, mapper, npoi. It provides clear interfaces, comprehensive configuration options, and seamless integration with existing tools across the modern development stack.
⚡ Key Features
Optimized execution pipeline written in C# for predictable speed.
Zero-friction configuration with comprehensive sensible defaults out of the box.
Cross-platform runtime support across Linux, macOS, and Windows environments.
Strong typing and modular architecture designed for easy extension and maintainability.
Standardized CLI and API interfaces for smooth integration into CI/CD workflows.
Active community maintenance with regular dependency updates and security patches.
📥 Installation
$ git clone https://github.com/mganss/ExcelMapper.git
cd ExcelMapper⚙ System Requirements
Platforms
- • macOS
- • Linux
- • Windows
Runtime & Dependencies
C# environment and standard tooling
Architecture
x86_64, ARM64 (Apple Silicon & Graviton)
🧠 How It Works
ExcelMapper coordinates its core functionality through a modular C# pipeline. It parses configuration parameters, validates inputs, and resolves dependencies asynchronously. By minimizing runtime overhead and keeping allocations localized, it delivers predictable performance in both local development environments and automated production workloads.
🎯 Production Use Cases
Production System Integration
Embed ExcelMapper into C# backend services to handle core application logic.
CI/CD Automated Pipelines
Run automated validation, builds, and integration suites during deployments.
Developer Tooling & Workflows
Accelerate developer onboarding with pre-configured project utilities.
Open Source Extension
Fork and customize internal modules under the repository's open MIT license.
🚀 Getting Started
Install ExcelMapper using your package manager: `git clone https://github.com/mganss/ExcelMapper.git`
Initialize your project workspace or configuration file for ExcelMapper.
Import ExcelMapper into your codebase or invoke it directly from your terminal.
Execute your test suite or run `ExcelMapper --help` to verify successful setup.
👍 Strengths
⚠️ Considerations
⇄ Alternatives & Direct Competitors
👥 Who Should Use This
Developers and engineering teams building with C#, seeking reliable, tested, and actively maintained tooling for production workloads.
🏆 Nearby in the Rankings
mganss/ExcelMapper is currently ranked #9,204 by stars across every repository tracked on GitHubRepo. These are adjacent projects:
| Rank | Repository | Language | Stars | Action |
|---|---|---|---|---|
| #9,195 | rcarmo/piclaw | TypeScript | ★ 894 | Compare ↗ |
| #9,195 | spiritbuun/buun-llama-cpp | C++ | ★ 894 | Compare ↗ |
| #9,201 | zwave-js/zwave-js | TypeScript | ★ 893 | Compare ↗ |
| #9,201 | guidance-ai/llguidance | Rust | ★ 893 | Compare ↗ |
| #9,201 | ningbainb/deepseek-harness-desktop | JavaScript | ★ 893 | Compare ↗ |
| #9,204 | mganss/ExcelMapper This Project | C# | ★ 892 | |
| #9,204 | gtalarico/pyairtable | Python | ★ 892 | Compare ↗ |
| #9,204 | NuvioMedia/NuvioTVSmart | JavaScript | ★ 892 | Compare ↗ |
| #9,204 | awizemann/scarf | Swift | ★ 892 | Compare ↗ |
| #9,208 | finom/matreshka | TypeScript | ★ 891 | Compare ↗ |
| #9,208 | laravel/slack-notification-channel | PHP | ★ 891 | Compare ↗ |
Frequently Asked Questions
What does ExcelMapper do? +
An Excel to object mapper. Maps POCOs to and from Excel. Configuration via convention, attributes, or fluent methods.
Is ExcelMapper actively maintained in 2026? +
Yes, ExcelMapper is actively maintained. The latest code push was recorded on Oct 28, 2026 (16 days ago). It holds a calculated Maintenance Health Score of 88/100 (A rating) with 892 stars and 30 open issues.
What language is ExcelMapper written in? +
The primary language is C#. Topics include: excel, mapper, npoi, orm, poco.
How many stars does ExcelMapper have? +
ExcelMapper has 892 stars and 127 forks on GitHub.
How does ExcelMapper rank among GitHub repositories? +
With 892 stars, mganss/ExcelMapper is ranked #9,204 globally across all repositories tracked on GitHubRepo and #467 among C# projects.
What license is ExcelMapper distributed under? +
The repository reports a MIT license. Always verify the repository LICENSE file for legal terms.
