CSV Data Analysis Agent
Build a CSV data analysis agent in Langflow that answers natural language questions about uploaded files using AI-powered analysis and Python code execution. Drag-and-drop components create instant insights from tabular data without coding.
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This Langflow flow creates a CSV data analysis agent that can answer questions about uploaded CSV files using natural language queries. The system combines file processing, AI-powered analysis, and Python code execution to provide instant insights from tabular data. Langflow's visual interface makes building this analysis pipeline fast and requires minimal coding, allowing you to drag and drop components to create a functional data analysis tool.
How it works
The flow starts by loading a CSV file through two file input components. One file component reads the CSV data and converts it to a structured DataFrame format, while another provides the file path information. The DataFrame goes through processing operations to extract the first few rows (head operation), which are then converted to a text format that can be used in prompts.
A prompt template combines the file path and sample data to create instructions for an AI agent. The template tells the agent it's a "File Analysis Agent" that should analyze CSV files using Python and pandas. It provides the agent with the file location and shows it the first 5 rows of data as context. The prompt includes detailed instructions on how to load different file types, understand data structure, and answer questions using pandas queries.
The core of the system is an OpenAI-powered agent that receives these instructions along with access to a Python interpreter tool. When users ask questions about the CSV data through the chat input, the agent can execute Python code to query the data and provide accurate answers. The agent has access to pandas and math libraries, allowing it to perform data analysis operations like counting rows, filtering data, calculating statistics, and answering specific questions about the dataset contents. The results are displayed through a chat output interface.
Example use cases
• Sales teams can upload customer data files and ask questions like "What's the average order value by region?" or "Which products had the highest return rates last quarter?"
• Financial analysts can process expense reports and query for budget variances, spending patterns, or cost center breakdowns using natural language.
• HR departments can analyze employee data to understand turnover rates, salary distributions, or performance metrics without writing SQL queries.
• Marketing teams can examine campaign performance data by asking about conversion rates, customer acquisition costs, or demographic trends.
• Operations managers can review inventory or logistics data to identify bottlenecks, seasonal patterns, or efficiency opportunities.
You can extend this flow using other Langflow components like web search to enrich CSV data with external information, structured output to format analysis results as JSON for downstream applications, or API request components to automatically fetch fresh data from external systems. The flow can also integrate with SQL databases to combine CSV analysis with database queries, or use embedding models to create semantic search capabilities across multiple data files. Advanced users can add agents with additional tools for more complex multi-step analysis workflows, or implement webhook triggers to automatically process new files as they arrive.
What you'll do
1.
Run the workflow to process your data
2.
See how data flows through each node
3.
Review and validate the results
What you'll learn
• How to build AI workflows with Langflow
• How to process and analyze data
• How to integrate with external services
Why it matters
Build a CSV data analysis agent in Langflow that answers natural language questions about uploaded files using AI-powered analysis and Python code execution. Drag-and-drop components create instant insights from tabular data without coding.
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