How to Build a Spreadsheet AI Agent

May 12, 2025

Kevin Bartley

Customer Success at Stack AI

Spreadsheets are the most popular business application, touching nearly every facet of a company’s operations. Business users prefer the spreadsheet for its flexibility and ease of use, allowing them to perform data analysis without requiring any coding. 

However, the spreadsheet does have significant limitations. Despite the no-code interface, spreadsheets still require business users to understand and write functions to analyze data. Also, spreadsheets can face performance issues with large data sets, demanding millions of rows.

But with AI agents, business users can now query spreadsheets with natural language to obtain answers to their questions. This frees up time and enables users without spreadsheet or SQL knowledge to perform data analysis.

In the following blog, we’ll show you how to build a Spreadsheet AI Agent in StackAI, and the benefits it has for your team.

Spreadsheets: Challenges & Limitations

While spreadsheets don't require traditional coding, they can still be challenging for those unfamiliar with their built-in functions and commands. Understanding how to use formulas like VLOOKUP, SUMIF, or INDEX-MATCH, along with complex nesting and data manipulation techniques, requires a certain level of technical knowledge. 

Even basic tasks like creating dynamic ranges or applying conditional formatting can be confusing without a solid grasp of spreadsheet logic. This learning curve can make spreadsheets feel just as intimidating as code for many users, limiting their ability to fully leverage the tool's powerful analytical capabilities.

Large datasets can pose significant challenges for spreadsheets because they quickly exceed the processing capabilities of most spreadsheet applications. Spreadsheets are optimized for moderate-sized data, but struggle when handling millions of rows or complex calculations. 

This leads to slow performance, frequent crashes, and increased risk of data corruption. This lack of scalability makes spreadsheets less suitable for big data analysis, where speed, reliability, and real-time insights are essential.

AI Agents: Analyze Spreadsheets with Natural Language

AI agents allow users to leverage natural language processing to analyze the data within a spreadsheet. This significantly lowers the barrier to entry for data analysis, allowing non-technical users to explore insights without needing to master complex formulas or scripting languages. 

For example, instead of writing a nested Excel function to calculate quarterly sales growth, a user can simply type "Show me the total sales growth by quarter," making the process faster and more intuitive. This democratization of data access helps organizations make data-driven decisions without requiring every team member to have deep technical expertise.

Additionally, natural language interfaces can speed up workflows by reducing the time spent navigating menus or constructing formulas. This can be especially valuable for users who need quick, on-the-fly insights during meetings or when preparing reports. 

Finally, natural language tools can help reduce errors and improve the consistency of analysis. By relying on standardized, AI-driven interpretations of user queries, these systems can reduce the likelihood of misconfigured formulas or misinterpretations of the data. 

AI agents are also transforming spreadsheets by integrating natural language processing as a tool to analyze data. These agents can handle complex tasks like generating formulas, identifying patterns, and automating repetitive processes based on plain language. This not only saves time but also reduces the risk of errors, as the AI can interpret the intent accurately and apply the correct functions. 

AI Agent Overview: Spreadsheet AI Assistant

This AI agent allows teams to upload a CSV and query the spreadsheet with natural language prompts. The prompt and the spreadsheet data are fed into the LLM. 

The LLM turns the natural language prompt into a SQL query and queries the spreadsheet as a database table. The result is returned in the Output box.

Industry

Horizontal

Persona

Business user

Problem

Summarizing complicated spreadsheets is sometimes time-intensive and difficult.

Solution

This AI agent summarizes a CSV based on a user’s prompt.

User Interface

Form

LLM

Meta - Llama 3.2 90B Vision Instruct Turbo

Data Sources

File upload (CSV)




Actions

  1. User types natural language instructions into the Input box.

  2. The user prompt and spreadsheet data are fed into the LLM.

  3. LLM analyzes and summarizes the spreadsheet based on the user prompt.

  4. Summary is shared with the user.

Time to Launch

Easy



Benefits

  • Empowers business teams to extract insights from spreadsheets without building complicated functions.

  • Saves time by allowing teams to produce summarizations, as opposed to sifting through data. 

  • Enables users to retrieve information about spreadsheets without allowing direct access.

In the next section, we’ll show you how to build a Spreadsheet AI Assistant in StackAI, using our pre-built template. 

Spreadsheet AI Assistant: How to Build

Here’s how to build the spreadsheet AI assistant. First, make sure to sign up for a free StackAI account

Navigate to the account dashboard. Click ‘New Project’.

Click the ‘Workflow Builder’ option.

From here, choose the Spreadsheet AI Agent template. 

This will launch a pre-built workflow containing the logic and components for the AI agent.

Let’s go through each of these components one at a time. First, we’ll start with the Input box.

Next, the Table node allows users to upload a CSV for analysis. Note: users will not be able to upload a CSV on the front end of the AI agent. They can only query this specific CSV from the front end.

The LLM receives the input text and the CSV. The text is transformed into a SQL query and runs against the CSV as a database table.

The Output box returns the result from the LLM as an answer.

Now go to the Export tab. 

Enter a name and a description for your AI agent.

Save the interface. 

Click the link to launch the web app. 

Now you can use your AI agent.

Type a question into the box. The AI agent will turn this text into a SQL query and run it against the spreadsheet. The answer will appear in the answer box.

Now your AI agent is ready to deploy across your team.

Launch the Spreadsheet AI Assistant Now!

Spreadsheets are a very popular tool with business users, but they do possess limitations. With the Spreadsheet AI Assistant, you can easily analyze spreadsheet data using natural language prompts.

You can launch our free Spreadsheet AI Agent template right now! Sign up for a free account and launch it from the dashboard.

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