Power query List.Transform to date not working?

I'm trying to use List.transform and date.from, but just have the same list of numbers.

So having got a list of dates uisng { date.. date } , i have got as far as this ;

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but the list of 'list' of dates all remain as numbers? I can't see where I'm going wrong, I've attached the workbook, table1,

help,

Richard.

Try

= Table.AddColumn(#"Changed Type", "Custom", each List.Transform({ Number.From([#"Sart Date "])..Number.From([End Date] ) },Date.From))

or
= Table.AddColumn(#"Changed Type", "Custom", each List.Dates([#"Sart Date "],Number.From([End Date]-[#"Sart Date "])+1,Duration.From(1)))