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 Id, Email INTO [csv://Prospects.txt] FROM [Prospects] WHERE ProspectAccountId = '703'

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 Id, Email INTO [csv://Prospects.txt;delimiter=tab] FROM [Prospects] WHERE ProspectAccountId = '703'

C#

String connectionString = "InitiateOAuth=GETANDREFRESH;BusinessUnitID=YourBusinessId;";

using (SalesforcePardotConnection connection = new SalesforcePardotConnection(connectionString)) {
  SalesforcePardotCommand cmd = new SalesforcePardotCommand("SELECT Id, Email INTO [csv://Prospects.txt] FROM [Prospects] WHERE ProspectAccountId = '703' ", connection);
  int rowsAffected = cmd.ExecuteNonQuery();
} 

VB.NET

Dim connectionString As [String] = "InitiateOAuth=GETANDREFRESH;BusinessUnitID=YourBusinessId;" 

Using connection As New SalesforcePardotConnection(connectionString)
  Dim cmd As New SalesforcePardotCommand("SELECT Id, Email INTO [csv://Prospects.txt] FROM [Prospects] WHERE ProspectAccountId = '703'", 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 = "InitiateOAuth=GETANDREFRESH;BusinessUnitID=YourBusinessId;";

using (SalesforcePardotConnection connection = new SalesforcePardotConnection(connectionString)) {
  SalesforcePardotCommand cmd = new SalesforcePardotCommand("SELECT * INTO [Prospects] IN [csv://filename=c:/Prospects.csv;delimiter=tab] FROM [Prospects] WHERE ProspectAccountId = '703'", connection);
  int rowsAffected = cmd.ExecuteNonQuery();
} 

VB.NET

Dim connectionString As [String] = "InitiateOAuth=GETANDREFRESH;BusinessUnitID=YourBusinessId;" 

Using connection As New SalesforcePardotConnection(connectionString)
  Dim cmd As New SalesforcePardotCommand("SELECT * INTO [Prospects] IN [csv://filename=c:/Prospects.csv;delimiter=tab] FROM [Prospects] WHERE ProspectAccountId = '703'", connection)
  Dim rowsAffected As Integer = cmd.ExecuteNonQuery()
End Using