The Created at data type is for displaying a non-editable date and time value showing when the row was created. Often this date and time was the date and time the worksheet was created however, any row added to the worksheet will show the date and time that row was added. The Created at data type is a System data type. System data types restrict all data in a column and automatically add the corresponding data.
The Created at data type has few settings, as the data in cells cannot be changed. However, like other text data types, you can adjust the formatting of cells in a Created at column using the formatting toolbar.
Created at is one of Spreadsheet.com's automatic column-level data types. Make sure to check out the Created by data type, as well as the Updated by and Updated at data types. All of our column-level data types are listed in our introduction to data types article.