# Column Types #### Introduction You may have noticed that Tablomat shows column titles in header cells, like below ...
This reflects an important difference between Tablomat and traditional editors like Excel (where column titles are written on the first row) ... > Tablomat is strict about the type of data entered in each column, and enforces consistency by limiting each column to a single name and type. #### Editing Columns Column types are inferred automatically when loading a sheet, but can also be edited by clicking the ellipsis icon (![](/files/n2WayLBU7WDYfAPCEzgb)) at the right side of the toolbar then "Edit Columns" to bring up this panel ... ![](/files/SGghplGkWuGc52mJ59rs) #### Types Tablomat supports the following types: 1. Text 2. List 3. Rich Text (HTML) 4. Files 5. Number 6. Boolean 7. Single Select Types tell Tablomat how to display, edit and validate data. The following subsections will go into the details of how each type behaves. You can learn about the individual types by clicking "Next" below, or skip to the next section [Uploading Images](/learn/uploading-images.md) to continue reading on Tablomat's features. --- # 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.tablomat.com/learn/column-types.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.