# Structured references Spreadsheet allows you to convert any data in the sheet to an Excel Table. Select a dataset, or add a dataset using an Array formula such as `=IMPORTDATA`

You can now add formulas in your table referencing to the column names

## Calculated Columns Dynamic columns can be added just like Excel. Users can edit the table, add multiple columns and extend the table range to give the column additional features such as filtering, sorting etc

## Joining tables You can join tables and create dynamic columns from multiple datasources. Structured formulas refer tables using `Table name` . For example, in the above table, you can add formulas like `=Table 2[@Region]` --- # 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.rowsncolumns.app/configuration/features/structured-references.md?ask= ``` 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.