https://learn.microsoft.com/en-us/office/vba/Language/Reference/User-Interface-Help/filesystemobject-object
FileSystemObject object | Microsoft Learn
VBA language reference
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https://learn.microsoft.com/en-us/previous-versions/windows/internet-explorer/ie-developer/windows-scripting/z9ty6h50(v=vs.84)?redirectedfrom=MSDN
FileSystemObject Object | Microsoft Learn
objectmicrosoftlearn