Provides access to a document loaded to the SpreadsheetCloudAPI service.
|Extension||Gets an extension of a file that corresponds to the document.|
|Filename||Gets a name of a file that corresponds to the document. The file extension is omitted.|
|Id||Gets an identifier of a session to which the document has been loaded.|
|Item||Overloaded. Gets a Worksheet object specified by its zero-based index.|
|Worksheets||Gets a collection of worksheets contained in the document.|