N/task Module
QueryTaskStatus.fileId
Property Description: Internal ID of the CSV file that query results are exported to. This property references the same CSV file that is specified by the QueryTask.fileId property or QueryTask.filePath property in the corresponding task.QueryTask object.
Type: number (read-only)
Supported Script Types: Server scripts For more information, see SuiteScript 2.0 Script Types.
Module: N/task Module
Parent Object: task.QueryTaskStatus
Sibling Object Members: QueryTaskStatus Object Members
Since: 2020.2
Search NetSuite - https://system.netsuite.com/app/help/helpcenter.nl?search=QueryTaskStatus.fileId

// Code Example 1

// Add additional code

//...

// myQueryTask is an existing task.QueryTask object

var myTaskId = myQueryTask.submit();



var myTaskStatus = task.checkStatus({

    taskId: myTaskId

});



var theFileId = myTaskStatus.fileId;

//...

// Add additional code



//SOURCE: https://system.netsuite.com/app/help/helpcenter.nl?fid=section_159223806776.html