Final answer:
The subject of this question is Computers and Technology, and the grade level is High School. File types like CSV and XML require the data source to be attached separately.
Step-by-step explanation:
The subject of this question is Computers and Technology and the grade level is High School.
When it comes to file types, there are some that require the data source to be attached separately. One example is the CSV (Comma-Separated Values) file type. In a CSV file, the data is organized in rows and columns, with each value separated by a comma. This file type requires the data source to be provided in a separate file.
Another example is the XML (eXtensible Markup Language) file type. XML files use tags to structure the data, and the data source needs to be attached separately in those tags.