Final answer:
To apply the Light Style 1 - Accent 3 Quick Style to a table, select the table, go to 'Table Tools Design' tab, and choose the fourth option in the first row of Light styles.
Step-by-step explanation:
To apply the Light Style 1 - Accent 3 Quick Style to a table in Microsoft Word or a similar word processing program, you'll need to click on the table to select it. Once selected, a new set of tabs will appear at the top of the program, typically named 'Table Tools' with subsections for 'Design' and 'Layout'. Go to the 'Table Tools Design' tab, and you will see a gallery of table styles. Locate the fourth option in the first row of the Light styles. This is the Light Style 1 - Accent 3. Click on this style to apply it to your table. The style will instantly change the appearance of your table, giving it a light color scheme that is consistent across your document. Ensure that you're applying the style to the correct table, which should now reflect an updated design with the specified light color, possibly enhancing elements like the dark blue table header with a white font.