2017-03-31 18:46:42 +00:00
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#### Sheet Visibility
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Excel enables hiding sheets in the lower tab bar. The sheet data is stored in
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the file but the UI does not readily make it available. Standard hidden sheets
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2017-09-24 23:40:09 +00:00
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are revealed in the "Unhide" menu. Excel also has "very hidden" sheets which
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2017-03-31 18:46:42 +00:00
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cannot be revealed in the menu. It is only accessible in the VB Editor!
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2017-04-30 20:37:53 +00:00
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The visibility setting is stored in the `Hidden` property of sheet props array.
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<details>
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2017-09-24 23:40:09 +00:00
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<summary><b>More details</b> (click to show)</summary>
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2017-03-31 18:46:42 +00:00
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| Value | Definition |
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|:-----:|:------------|
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| 0 | Visible |
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| 1 | Hidden |
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| 2 | Very Hidden |
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With <https://rawgit.com/SheetJS/test_files/master/sheet_visibility.xlsx>:
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```js
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> wb.Workbook.Sheets.map(function(x) { return [x.name, x.Hidden] })
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[ [ 'Visible', 0 ], [ 'Hidden', 1 ], [ 'VeryHidden', 2 ] ]
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```
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Non-Excel formats do not support the Very Hidden state. The best way to test
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2017-04-02 06:47:25 +00:00
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if a sheet is visible is to check if the `Hidden` property is logical truth:
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2017-03-31 18:46:42 +00:00
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```js
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> wb.Workbook.Sheets.map(function(x) { return [x.name, !x.Hidden] })
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[ [ 'Visible', true ], [ 'Hidden', false ], [ 'VeryHidden', false ] ]
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```
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2017-04-30 20:37:53 +00:00
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</details>
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2017-03-31 18:46:42 +00:00
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