Display Specific Lines From A .rtf?

Oct 2, 2011

At the moment I'm using:

For Each book In books
result.Add(File.ReadAllText(book).Substring(0, 500))
Next
Return result

to display the first 500 characters of an rtf file I'm drawing from in earlier code, but I'm now wanting to specify line - for example lines 4 - 20.I can't find any way to get this to work as when I change the above code to:

For Each book In books
result.Add(File.ReadLines(book).Substring(4, 24))
Next
Return result

I get massive issues stating "Substring is not a member of 'System.Collections.Generic.IEnumberable(Of String)" I feel like I'm literally 1 line of code away from this being fixed but cannot get my head around it.

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[img]http//google.com/img.jpg[img]
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[quote]

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[Code]....

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G53G90G40
F1
M06 T0 F50.

[Code].....

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[Code]...

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[Code]....

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[code]....

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Code:
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[Code].....

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[Code]....

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[Code]...

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[Code]....

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