I set my font sizes and my dimension decimal place to 3, save my drawing sheet format and when I pulled it up everythings back to default. What am I doing wrong?

I can't get my drawing settings to remain after I set them.  I set my font sizes and my dimension decimal places to 3, save my drawing as a sheet template, and when I pull that drawing sheet up again, everythings back to defaults.  What am I doing wrong?

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