Most of this can be done by:
Find: ^13(Qty[0-9]{1,})^13
Replace With: " \1 " without the quotes but with spaces either side of the \1

You can add Format>Paragraph>Alignment=Left to the Replace With box to make sure the result aligns left.

A separate find replace can be used to bring the return($ onto the same line. For that one you can:
Find: ^13(\($)
Replace with: " \1"

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Andrew Lockton
Chrysalis Design, Melbourne Australia