Good. And what exactly do you need a help with?

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You can import your FileZilla site to WinSCP:
https://winscp.net/eng/docs/ui_import
(WinSCP installer should even offer you to do that automatically)
And then everything should be straightforward.

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If not, please start here:
Guides to Using WinSCP
Or ask more specific questions.

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Seeing that you have posted in "Scripting" forum, you might also want to read this:
Automating FileZilla

I have a website – arrt's-arrchives.Com through FileZilla.
I want to change to your WinSCP.