What option can be used to view a data value that is not completely visible in the results window?

Using the cell viewer or expanding the column width is the best option to view data values that are not completely visible in the results window. The cell viewer allows users to examine individual cell values more closely, especially if they are too long to fit in the display area. Additionally, expanding the column width enables more characters to be displayed directly in the results window, making it easier to read without additional actions.

This approach is practical and user-friendly, as it directly addresses visibility issues without altering the data itself. On the other hand, options like removing filters or exporting the data may change the context or format in which the data is viewed, but they do not address the immediate issue of viewing truncated values in the results window. Changing the data type may also not solve visibility problems and could potentially lead to other issues. Therefore, utilizing the cell viewer or adjusting the column width is the most effective solution for ensuring complete visibility of data values.