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 GoalHeadingId, GoalHeadingId INTO [csv://GoalHeadings.txt] FROM [GoalHeadings] WHERE Name = 'MyAccount'

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 GoalHeadingId, GoalHeadingId INTO [csv://GoalHeadings.txt;delimiter=tab] FROM [GoalHeadings] WHERE Name = 'MyAccount'

C#

String connectionString = "InitiateOAuth=GETANDREFRESH;OrganizationUrl=https://myaccount.operations.dynamics.com/;Edition=Sales;";

using (Dynamics365Connection connection = new Dynamics365Connection(connectionString)) {
  Dynamics365Command cmd = new Dynamics365Command("SELECT GoalHeadingId, GoalHeadingId INTO [csv://GoalHeadings.txt] FROM [GoalHeadings] WHERE Name = 'MyAccount' ", connection);
  int rowsAffected = cmd.ExecuteNonQuery();
} 

VB.NET

Dim connectionString As [String] = "InitiateOAuth=GETANDREFRESH;OrganizationUrl=https://myaccount.operations.dynamics.com/;Edition=Sales;" 

Using connection As New Dynamics365Connection(connectionString)
  Dim cmd As New Dynamics365Command("SELECT GoalHeadingId, GoalHeadingId INTO [csv://GoalHeadings.txt] FROM [GoalHeadings] WHERE Name = 'MyAccount'", 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;OrganizationUrl=https://myaccount.operations.dynamics.com/;Edition=Sales;";

using (Dynamics365Connection connection = new Dynamics365Connection(connectionString)) {
  Dynamics365Command cmd = new Dynamics365Command("SELECT * INTO [GoalHeadings] IN [csv://filename=c:/GoalHeadings.csv;delimiter=tab] FROM [GoalHeadings] WHERE Name <> 'MyAccount'", connection);
  int rowsAffected = cmd.ExecuteNonQuery();
} 

VB.NET

Dim connectionString As [String] = "InitiateOAuth=GETANDREFRESH;OrganizationUrl=https://myaccount.operations.dynamics.com/;Edition=Sales;" 

Using connection As New Dynamics365Connection(connectionString)
  Dim cmd As New Dynamics365Command("SELECT * INTO [GoalHeadings] IN [csv://filename=c:/GoalHeadings.csv;delimiter=tab] FROM [GoalHeadings] WHERE Name <> 'MyAccount'", connection)
  Dim rowsAffected As Integer = cmd.ExecuteNonQuery()
End Using