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, ProductName INTO [csv://[DemoDB].[PUBLIC].Products.txt] FROM [[DemoDB].[PUBLIC].Products] WHERE ProductName = 'Konbu'

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, ProductName INTO [csv://[DemoDB].[PUBLIC].Products.txt;delimiter=tab] FROM [[DemoDB].[PUBLIC].Products] WHERE ProductName = 'Konbu'

C#

String connectionString = "url=https://myaccount.region.snowflakecomputing.com;user=Admin;password=test123;Database=Northwind;Warehouse=TestWarehouse;Account=Tester1;";

using (SnowflakeConnection connection = new SnowflakeConnection(connectionString)) {
  SnowflakeCommand cmd = new SnowflakeCommand("SELECT Id, ProductName INTO [csv://[DemoDB].[PUBLIC].Products.txt] FROM [[DemoDB].[PUBLIC].Products] WHERE ProductName = 'Konbu' ", connection);
  int rowsAffected = cmd.ExecuteNonQuery();
} 

VB.NET

Dim connectionString As [String] = "url=https://myaccount.region.snowflakecomputing.com;user=Admin;password=test123;Database=Northwind;Warehouse=TestWarehouse;Account=Tester1;" 

Using connection As New SnowflakeConnection(connectionString)
  Dim cmd As New SnowflakeCommand("SELECT Id, ProductName INTO [csv://[DemoDB].[PUBLIC].Products.txt] FROM [[DemoDB].[PUBLIC].Products] WHERE ProductName = 'Konbu'", 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 = "url=https://myaccount.region.snowflakecomputing.com;user=Admin;password=test123;Database=Northwind;Warehouse=TestWarehouse;Account=Tester1;";

using (SnowflakeConnection connection = new SnowflakeConnection(connectionString)) {
  SnowflakeCommand cmd = new SnowflakeCommand("SELECT * INTO [[DemoDB].[PUBLIC].Products] IN [csv://filename=c:/[DemoDB].[PUBLIC].Products.csv;delimiter=tab] FROM [[DemoDB].[PUBLIC].Products] WHERE ProductName = 'Konbu'", connection);
  int rowsAffected = cmd.ExecuteNonQuery();
} 

VB.NET

Dim connectionString As [String] = "url=https://myaccount.region.snowflakecomputing.com;user=Admin;password=test123;Database=Northwind;Warehouse=TestWarehouse;Account=Tester1;" 

Using connection As New SnowflakeConnection(connectionString)
  Dim cmd As New SnowflakeCommand("SELECT * INTO [[DemoDB].[PUBLIC].Products] IN [csv://filename=c:/[DemoDB].[PUBLIC].Products.csv;delimiter=tab] FROM [[DemoDB].[PUBLIC].Products] WHERE ProductName = 'Konbu'", connection)
  Dim rowsAffected As Integer = cmd.ExecuteNonQuery()
End Using