In extraordinary events, you should need to number lines in content. Including line numbers in Word is direct.
Imagine a scenario in which you don’t need Word to number each line however rather you need numbered, for instance, each fifth line. Not an issue by any means.
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How to Number Every 9th Line in Microsoft Word?
On Page Layout tab, click on Line Numbers and click Line Numbering Options.
Page Setup opens. Click on Line Numbers.
Line Numbers windows opens. Checking Add line numbering box makes the options available.
You can start numbering at a specific number (Start at), control number position (From text) and number every nth line (Count by).
If you don’t need continuous numbering, choose between restarting numbering on each page or each section.
Type or click arrows to enter number 5 in Count by.
Click OK again to close Page Setup window.
For more information, visit : www.office.com/setup