In a table you can apply formatting such as bold and italics to individual columns, and text would then assume that formatting when typed in. Also, when adding rows, for example by pressing Tab at the end of the last cell in the last row, the formatting would follow. In other words, this would be a simple way to accomplish what you are trying to do. If you want more "complex" formatting, you could even apply a different style to each column.

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Stefan Blom
Microsoft Word MVP

Microsoft 365 apps for business
Windows 11 Professional