Here's a more detailed breakdown:

1. Open Excel and switch to Page Layout view: The ruler is only visible when the workbook is in Page Layout view.
You can switch to this view by clicking on the View tab in the ribbon and then selecting Page Layout. 
2. Enable the Ruler: Once in Page Layout view, locate the Ruler option within the "Show" group on the View tab. 
3. Check the box: Click the checkbox next to "Ruler" to make it visible. 
4. View the rulers: You should now see the horizontal ruler at the top and the vertical ruler on the left side of your worksheet. 

Step-by-Step Guide: How to Enable the Ruler in Microsoft Excel

Step 1

Select the "View" option.

Step 2

locate the "Headings & Guidelines" option. Enable this option to add rulers and guidelines to your sheet.

Step 3

Your setup is now complete. Thank you for following the instructions.

Pro Tips for Enabling the Ruler in Microsoft Excel

1. Switch to Page Layout View
   The ruler only appears in Page Layout view. Go to the View tab on the Ribbon and click Page Layout to see it.

2. Use the View Tab for Quick Access
   From the View tab, check the Ruler box under the “Show” group to toggle the ruler on or off instantly.

3. Adjust Zoom for Better Precision
   Zoom in for more accurate alignment when using the ruler to measure or position objects.

4. Use the Horizontal Ruler for Column Widths
   The top ruler is ideal for visually adjusting column widths to match specific measurements.

5. Leverage Ruler in Print Setup
   When preparing documents for printing, use the ruler to ensure margins and layouts match your desired print output.

Common Pitfalls and How to Avoid Them

1. Looking for the Ruler in Normal View
   The ruler is not visible in Normal view. Switch to Page Layout view to enable it.

2. Forgetting to Check the Ruler Box
   Even in Page Layout view, you need to tick the Ruler checkbox in the View tab for it to appear.

3. Confusing the Gridlines with the Ruler
   Gridlines mark cell boundaries, while the ruler measures distance in units (inches/cm). Don’t mistake one for the other.

4. Not Matching Units to Your Needs
   The ruler uses the units set in your Excel options (inches, cm, mm). Change them via File > Options > Advanced > Display for better accuracy.

5. Expecting the Ruler in Excel Online
   Excel’s web version does not currently support the ruler feature—use the desktop version instead.

Common FAQs About Enabling the Ruler in Microsoft Excel

1. Why can’t I see the ruler in Excel?
   Make sure you’re in Page Layout view and the Ruler checkbox is selected in the View tab.

2. Can I change the ruler’s units?
   Yes, go to File > Options > Advanced > Display and choose your preferred measurement units.

3. Does the ruler show vertical measurements?
   Yes, in Page Layout view you get both horizontal and vertical rulers for precise alignment.

4. Can I use the ruler to align shapes and images?
   Yes, the ruler is especially useful for positioning graphics, charts, and shapes accurately.

5. Will the ruler affect printed output?
   No, the ruler is only for on-screen measurement it doesn’t print with your document.

6. How to screen record on mac? 
   To screen record on a Mac, you can use Trupeer AI. It allows you to capture the entire screen and provides AI capabilities such as adding AI avatars, add voiceover, add zoom in and out in the video. With trupeer’s AI video translation feature, you can translate the video into 30+ languages. 

7. How to add an AI avatar to screen recording?
   To add an AI avatar to a screen recording, you'll need to use an AI screen recording tool. Trupeer AI is an AI screen recording tool, which helps you create videos with multiple avatars, also helps you in creating your own avatar for the video.

8. How to screen record on windows?
   To screen record on Windows, you can use the built-in Game Bar (Windows + G) or advanced AI tool like Trupeer AI for more advanced features such as AI avatars, voiceover, translation etc.

9. How to add voiceover to video?
   To add voiceover to videos, download trupeer ai chrome extension. Once signed up, upload your video with voice, choose the desired voiceover from trupeer and export your edited video. 

10. How do I Zoom in on a screen recording?
    To zoom in during a screen recording, use the zoom effects in Trupeer AI which allows you to zoom in and out at specific moments, enhancing the visual impact of your video content.