is an object that represents an open notebook in the front end.


  • NotebookObject expressions are typically generated by kernel commands such as InputNotebook, EvaluationNotebook, and Notebooks.
  • fe is a FrontEndObject that specifies the front end in which the notebook is open.
  • id is an integer that gives a unique serial number for this open notebook.
  • In StandardForm and OutputForm, notebook objects are printed so as to indicate the current title of the window that would be used to display the notebook.
  • Functions such as NotebookPrint and NotebookClose take NotebookObject as their argument.
  • Within any open notebook, there is always a current selection. The current selection can be modified by applying functions such as SelectionMove to NotebookObject.
  • A NotebookObject is permanently invalid after a notebook is closed, even if that notebook is reopened.
  • Information for a NotebookObject may include the following properties:
  • "WindowTitle"notebook's window title
    "MemoryModificationTime"modification time stamp
    "ModifiedInMemory"whether the notebook has been modified since last save
    "StorageSystem"storage location for notebook
    "DocumentType"notebook type
    "MIMEType"application MIME type


open allclose all

Basic Examples  (1)

Functions that create notebooks return NotebookObject expressions:

Functions that act on notebooks take a notebook object as an argument:

Retitling a notebook changes the way the NotebookObject expression is displayed:

The NotebookObject expression itself has not changed:

Scope  (2)

There are several ways to obtain a NotebookObject:

Open a notebook from a file:

Use the NotebookObject to refer to the notebook in notebook operations:

Read selected data from the notebook:

Set options for the notebook:

Set options for the selected cell:

Insert new material into the notebook:

Save the notebook:

Close the notebook and delete the temporary file:

Properties & Relations  (1)

Turn a Notebook expression into a NotebookObject:

Turn a NotebookObject into a Notebook expression:

Possible Issues  (1)

After a notebook has been closed, the NotebookObject can no longer be manipulated:

Wolfram Research (1996), NotebookObject, Wolfram Language function, (updated 2019).


Wolfram Research (1996), NotebookObject, Wolfram Language function, (updated 2019).


@misc{reference.wolfram_2020_notebookobject, author="Wolfram Research", title="{NotebookObject}", year="2019", howpublished="\url{}", note=[Accessed: 21-January-2021 ]}


@online{reference.wolfram_2020_notebookobject, organization={Wolfram Research}, title={NotebookObject}, year={2019}, url={}, note=[Accessed: 21-January-2021 ]}


Wolfram Language. 1996. "NotebookObject." Wolfram Language & System Documentation Center. Wolfram Research. Last Modified 2019.


Wolfram Language. (1996). NotebookObject. Wolfram Language & System Documentation Center. Retrieved from