Do you mean a vbscript? Do you specifically want the file picker or would it be better if you could drag a Word document on top of the script to 'pass in the filename' variable?

Which header does the logo go in to? (Section 1 first page, main or even?) Is there other content in that header that has to remain? This will be easiest if your entire header or logo is saved in the Normal template as a building block.

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Andrew Lockton
Chrysalis Design, Melbourne Australia