You can use the SELECT INTO statement to export formatted data to a file.

Data Export with an SQL Query

The following query exports data into a file formatted in comma-separated values (CSV):

SELECT PartitionKey, Name INTO [csv://NorthwindProducts.txt] FROM [NorthwindProducts] WHERE Industry = 'Floppy Disks'

You can specify other formats in the file URI. The possible delimiters are tab, semicolon, and comma with the default being a comma. The following example exports tab-separated values:

SELECT PartitionKey, Name INTO [csv://NorthwindProducts.txt;delimiter=tab] FROM [NorthwindProducts] WHERE Industry = 'Floppy Disks'

C#

String connectionString = "AccessKey=myAccessKey;Account=myAccountName;";

using (AzureTablesConnection connection = new AzureTablesConnection(connectionString)) {
  AzureTablesCommand cmd = new AzureTablesCommand("SELECT PartitionKey, Name INTO [csv://NorthwindProducts.txt] FROM [NorthwindProducts] WHERE Industry = 'Floppy Disks' ", connection);
  int rowsAffected = cmd.ExecuteNonQuery();
} 

VB.NET

Dim connectionString As [String] = "AccessKey=myAccessKey;Account=myAccountName;" 

Using connection As New AzureTablesConnection(connectionString)
  Dim cmd As New AzureTablesCommand("SELECT PartitionKey, Name INTO [csv://NorthwindProducts.txt] FROM [NorthwindProducts] WHERE Industry = 'Floppy Disks'", connection)
  Dim rowsAffected As Integer = cmd.ExecuteNonQuery()
End Using

You can specify other file formats in the URI. The following example exports tab-separated values:

C#

String connectionString = "AccessKey=myAccessKey;Account=myAccountName;";

using (AzureTablesConnection connection = new AzureTablesConnection(connectionString)) {
  AzureTablesCommand cmd = new AzureTablesCommand("SELECT * INTO [NorthwindProducts] IN [csv://filename=c:/NorthwindProducts.csv;delimiter=tab] FROM [NorthwindProducts] WHERE Industry = 'Floppy Disks'", connection);
  int rowsAffected = cmd.ExecuteNonQuery();
} 

VB.NET

Dim connectionString As [String] = "AccessKey=myAccessKey;Account=myAccountName;" 

Using connection As New AzureTablesConnection(connectionString)
  Dim cmd As New AzureTablesCommand("SELECT * INTO [NorthwindProducts] IN [csv://filename=c:/NorthwindProducts.csv;delimiter=tab] FROM [NorthwindProducts] WHERE Industry = 'Floppy Disks'", connection)
  Dim rowsAffected As Integer = cmd.ExecuteNonQuery()
End Using