# Using VLOOKUP

{% embed url="<https://drive.google.com/file/d/1msuZg5ZQRAhfLtDkZpF3fQUJTcvVk2D2/view?usp=share_link>" %}
A quick example of using VLOOKUP in Mito.
{% endembed %}

#### Instructions for Using VLOOKUP to join dataframes

1. Double click on the first cell in a column where you want to use a VLOOKUP
2. Click on the first cell of the lookup key, in the same dataframe that you are editing.
3. Switch to the dataframe you're looking up in
4. Click on the column header that is the key for your lookup in the new dataframe
5. Holding `Shift`, click on the column header of the value you want.&#x20;
6. Enter the index of that new column as the third argument.


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# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.trymito.io/how-to/interacting-with-your-data/using-vlookup.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.