({{, (RefLink[CellOpen, paclet:ref/CellOpen])
is an option for (RefLink[Cell, paclet:ref/Cell]) that specifies whether the contents of a cell should be explicitly displayed. }})

OpenersNotesSection(Spacer1)Details

With (RefLink[CellOpen, paclet:ref/CellOpen])->(RefLink[False, paclet:ref/False]), a small cell bracket is still shown to indicate the presence of a cell.

Cells that are not open can still be evaluated automatically if you set (RefLink[InitializationCell, paclet:ref/InitializationCell])->(RefLink[True, paclet:ref/True]).

OpenersPrimaryExamplesSection(Spacer1)Examples  (1)

OpenersExampleSection0(Spacer1)Basic Examples  (1)

Create a notebook with one open cell and one closed cell:

nb=CreateDocument[{TextCell["text 1","Text",CellOpen->True],TextCell["text 2","Text",CellOpen->False]}];

Find data in a closed cell:

NotebookFind[nb,"text 2"];NotebookRead[nb]

({{DocumentationFooterIconsRelatedFunction.png, ({{See Also}, {(RefLink[Visible, paclet:ref/Visible])  ▪  (RefLink[CellGroupData, paclet:ref/CellGroupData])  ▪  (RefLink[ConversionRules, paclet:ref/ConversionRules])}})}})

({{DocumentationFooterIconsRelatedTutorial.png, ({{Tutorials}, {▪(RefLinkPlain[Options for Cells, paclet:tutorial/OptionsForCells])}})}})

({{DocumentationFooterIconsRelatedGuide.png, ({{Related Guides}, {▪(RefLinkPlain[Cell Styling Options, paclet:guide/CellStylingOptions])}})}})