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, WorkspaceId INTO [csv://projects.txt] FROM [projects] WHERE Archived = 'true'

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, WorkspaceId INTO [csv://projects.txt;delimiter=tab] FROM [projects] WHERE Archived = 'true'

C#

String connectionString = "InitiateOAuth=GETANDREFRESH;OAuthClientId=YourClientId;OAuthClientSecret=YourClientSecret;CallbackURL='http://localhost:33333'";

using (AsanaConnection connection = new AsanaConnection(connectionString)) {
  AsanaCommand cmd = new AsanaCommand("SELECT Id, WorkspaceId INTO [csv://projects.txt] FROM [projects] WHERE Archived = 'true' ", connection);
  int rowsAffected = cmd.ExecuteNonQuery();
} 

VB.NET

Dim connectionString As [String] = "InitiateOAuth=GETANDREFRESH;OAuthClientId=YourClientId;OAuthClientSecret=YourClientSecret;CallbackURL='http://localhost:33333'" 

Using connection As New AsanaConnection(connectionString)
  Dim cmd As New AsanaCommand("SELECT Id, WorkspaceId INTO [csv://projects.txt] FROM [projects] WHERE Archived = 'true'", 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;OAuthClientId=YourClientId;OAuthClientSecret=YourClientSecret;CallbackURL='http://localhost:33333'";

using (AsanaConnection connection = new AsanaConnection(connectionString)) {
  AsanaCommand cmd = new AsanaCommand("SELECT * INTO [projects] IN [csv://filename=c:/projects.csv;delimiter=tab] FROM [projects] WHERE Archived = 'true'", connection);
  int rowsAffected = cmd.ExecuteNonQuery();
} 

VB.NET

Dim connectionString As [String] = "InitiateOAuth=GETANDREFRESH;OAuthClientId=YourClientId;OAuthClientSecret=YourClientSecret;CallbackURL='http://localhost:33333'" 

Using connection As New AsanaConnection(connectionString)
  Dim cmd As New AsanaCommand("SELECT * INTO [projects] IN [csv://filename=c:/projects.csv;delimiter=tab] FROM [projects] WHERE Archived = 'true'", connection)
  Dim rowsAffected As Integer = cmd.ExecuteNonQuery()
End Using