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 Name, Industry INTO [csv://Accounts.txt] FROM [Accounts] WHERE Industry = 'Manufacturing'

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 Name, Industry INTO [csv://Accounts.txt;delimiter=tab] FROM [Accounts] WHERE Industry = 'Manufacturing'

C#

String connectionString = "InitiateOAuth=GETANDREFRESH;URL=http://mySugarCRM.com;User=myUser;Password=myPassword;";

using (SugarCRMConnection connection = new SugarCRMConnection(connectionString)) {
  SugarCRMCommand cmd = new SugarCRMCommand("SELECT Name, Industry INTO [csv://Accounts.txt] FROM [Accounts] WHERE Industry = 'Manufacturing' ", connection);
  int rowsAffected = cmd.ExecuteNonQuery();
} 

VB.NET

Dim connectionString As [String] = "InitiateOAuth=GETANDREFRESH;URL=http://mySugarCRM.com;User=myUser;Password=myPassword;" 

Using connection As New SugarCRMConnection(connectionString)
  Dim cmd As New SugarCRMCommand("SELECT Name, Industry INTO [csv://Accounts.txt] FROM [Accounts] WHERE Industry = 'Manufacturing'", 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;URL=http://mySugarCRM.com;User=myUser;Password=myPassword;";

using (SugarCRMConnection connection = new SugarCRMConnection(connectionString)) {
  SugarCRMCommand cmd = new SugarCRMCommand("SELECT * INTO [Accounts] IN [csv://filename=c:/Accounts.csv;delimiter=tab] FROM [Accounts] WHERE Industry = 'Manufacturing'", connection);
  int rowsAffected = cmd.ExecuteNonQuery();
} 

VB.NET

Dim connectionString As [String] = "InitiateOAuth=GETANDREFRESH;URL=http://mySugarCRM.com;User=myUser;Password=myPassword;" 

Using connection As New SugarCRMConnection(connectionString)
  Dim cmd As New SugarCRMCommand("SELECT * INTO [Accounts] IN [csv://filename=c:/Accounts.csv;delimiter=tab] FROM [Accounts] WHERE Industry = 'Manufacturing'", connection)
  Dim rowsAffected As Integer = cmd.ExecuteNonQuery()
End Using