Unable to pull in more than one row when parsing XML data into SQL

I have seen a few XML parsing examples, and tried several but I am stuck on how to display all rows

My H:\Sample.xml file looks like:

<?xml version="1.0" encoding="utf-8"?>
<Level1>
    <Level2>
        <Level3>
            <Data>Line1</Data>
            <Data>Line2</Data>
            <Data>Line3</Data>
            <Data>Line4</Data>
        </Level3>
    </Level2>
</Level1>

My Levels don't have values attached, and I just want to produce a column of the 4 data lines.

I have tried three methods:

First Method: Using OpenRowSet and .nodes

   DECLARE @Data XML

    SET @Data = (   SELECT CONVERT(XML, BulkColumn) AS BulkColumn
                    FROM OPENROWSET(BULK 'H:\Sample.xml', SINGLE_BLOB) as X )
    SELECT
        a.b.value('Data[1]','nvarchar(255)') as Detail
    FROM @Data.nodes('Level1/Level2/Level3')a(b)

Second Method: Using Cross Apply

WITH xmlFile (Contents) AS (
    SELECT CONVERT(XML, BulkColumn) AS BulkColumn
    FROM OPENROWSET(BULK 'H:\Sample.xml', SINGLE_BLOB) as XmlData
)
SELECT
    c.value('(Data)[1]', 'varchar(255)') AS Detail
FROM   XmlFile CROSS APPLY Contents.nodes ('(//Level1/Level2/Level3)') AS t(c);

Third Method: Using sp_xml_preparedocument

DECLARE @hDoc AS INT
DECLARE @SQL NVARCHAR (MAX)

EXEC sp_xml_preparedocument @hDoc OUTPUT, @Data

SELECT Detail
FROM OPENXML(@hDoc, 'Level1/Level2/Level3')
WITH (Detail [varchar](255) '@Data')

EXEC sp_xml_removedocument @hDoc
GO

The first two examples show "Line1" and the last one shows NULL (all just one line each)