Word doesn't have "reveal codes," so you have to apply a different logic. In the Find and Replace dialog box in Word, ^p represents a paragraph mark (assuming that "Use wildcards" is cleared).

At least in theory, you can replace ".^p^p" with ".^p " (not including the quotation marks). But this will create a paragraph starting with three space characters, which is not the same as a first line indent in Word.

Getting rid of duplicate paragraph marks, via Find and Replace, and then applying the appropriate styles to text is a more convenient, long-term solution.

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Stefan Blom
Microsoft Word MVP

Microsoft 365 apps for business
Windows 11 Professional