---
title: "Inspect large CSV files interactively before cleanup, mapping, or downstream transforms with csvlens"
description: "Use csvlens when an agent or operator needs fast column-aware inspection of a large CSV before cleaning, mapping, or transforming it."
verification: "security_reviewed"
source: "https://github.com/YS-L/csvlens"
author: "YS-L"
publisher_type: "individual"
category:
  - "Data Extraction & Transformation"
framework:
  - "Multi-Framework"
tool_ecosystem:
  github_repo: "YS-L/csvlens"
  github_stars: 3715
  npm_package: "csvlens"
  npm_weekly_downloads: 56891
---

# Inspect large CSV files interactively before cleanup, mapping, or downstream transforms with csvlens

Use csvlens when an agent or operator needs fast column-aware inspection of a large CSV before cleaning, mapping, or transforming it.

## Prerequisites

csvlens, local CSV files, and terminal access on the machine where the data lives.

## Installation

Choose whichever fits your setup:

1. Copy this skill folder into your local skills directory.
2. Clone the repo and symlink or copy the skill into your agent workspace.
3. Add the repo as a git submodule if you manage shared skills centrally.
4. Install it through your internal provisioning or packaging workflow.
5. Download the folder directly from GitHub and place it in your skills collection.

Install command or upstream instructions:

```
Install csvlens using the method documented in the repository, open the CSV file you want to inspect, then use its interactive filtering and navigation features to validate column shape and row anomalies before writing downstream transforms.
```

## Documentation

- https://github.com/YS-L/csvlens#readme

## Source

- [Agent Skill Exchange](https://agentskillexchange.com/skills/inspect-large-csv-files-interactively-before-cleanup-mapping-or-downstream-transforms-with-csvlens/)