What type of field allows users to input text descriptions in Smartsheet?

The Text/Number field is designed specifically for inputting text descriptions in Smartsheet. This type of field is versatile as it can contain alphanumeric characters, allowing users to enter detailed descriptions, comments, or information relevant to the task or project at hand. It facilitates flexibility in data entry, making it suitable for various scenarios where textual information is necessary.

In contrast, other field types serve specific purposes that do not accommodate freeform text input. The Date/Time field is strictly for dates and times, limiting what can be entered to those formats. The Dropdown list field requires users to select from predefined options, which can restrict the input to those options alone. The Checkbox field is used for binary choices (checked or unchecked) and does not allow for any textual descriptions. This distinction clarifies why the Text/Number field is the appropriate choice for text descriptions in Smartsheet.