VB.net code read a csv content from blob

Public Function GetBlobData(filename As String, connectionString As String, containerName As String) As String
	' Retrieve storage account from connection string.
	Dim storageAccount As CloudStorageAccount = CloudStorageAccount.Parse(connectionString)

	' Create the blob client.
	Dim blobClient As CloudBlobClient = storageAccount.CreateCloudBlobClient()

	' Retrieve reference to a previously created container.
	Dim container As CloudBlobContainer = blobClient.GetContainerReference(containerName)

	' Retrieve reference to a blob named "test.csv"
	Dim blockBlob2 As CloudBlockBlob = container.GetBlockBlobReference(filename)

	Dim text As String
	Using memoryStream = New MemoryStream()
		blockBlob2.DownloadToStream(memoryStream)
		text = System.Text.Encoding.UTF8.GetString(memoryStream.ToArray())
	End Using

	Return text
End Function