Final answer:
The Print Area in spreadsheet applications like Microsoft Excel is Manually adjustable. Users can set or modify it to print selected parts of a worksheet. This feature is useful for printing only the relevant data needed for reports and documents.
Step-by-step explanation:
The Print Area in spreadsheet programs like Microsoft Excel defines the area of the worksheet that is going to be printed. The correct answer to whether the Print Area is always automatic, only prints headers, can't be adjusted, or is manually adjustable is D) Manually adjustable. Users can set a specific range of cells they wish to print, which can be particularly useful when dealing with large datasets or when only a portion of the data needs to be printed.
To adjust the Print Area, you typically go to the Page Layout tab in the ribbon, then choose 'Print Area' and 'Set Print Area' after selecting the cells you want to print. You can also add to or clear the Print Area from this menu. Adjusting the Print Area is helpful for creating professional reports and documents that only include relevant information for the intended audience.