sheetjs/docbits/54_shobject.md

Worksheet Object

In addition to the base sheet keys, worksheets also add:

• ws['!cols']: array of column properties objects. Column widths are actually stored in files in a normalized manner, measured in terms of the "Maximum Digit Width" (the largest width of the rendered digits 0-9, in pixels). When parsed, the column objects store the pixel width in the wpx field, character width in the wch field, and the maximum digit width in the MDW field.

• ws['!rows']: array of row properties objects as explained later in the docs. Each row object encodes properties including row height and visibility.

• ws['!merges']: array of range objects corresponding to the merged cells in the worksheet. Plaintext utilities are unaware of merge cells. CSV export will write all cells in the merge range if they exist, so be sure that only the first cell (upper-left) in the range is set.

• ws['!protect']: object of write sheet protection properties. The password key specifies the password for formats that support password-protected sheets (XLSX/XLSB/XLS). The writer uses the XOR obfuscation method. The following keys control the sheet protection -- set to false to enable a feature when sheet is locked or set to true to disable a feature:

key	feature (true=disabled / false=enabled)	default
selectLockedCells	Select locked cells	enabled
selectUnlockedCells	Select unlocked cells	enabled
formatCells	Format cells	disabled
formatColumns	Format columns	disabled
formatRows	Format rows	disabled
insertColumns	Insert columns	disabled
insertRows	Insert rows	disabled
insertHyperlinks	Insert hyperlinks	disabled
deleteColumns	Delete columns	disabled
deleteRows	Delete rows	disabled
sort	Sort	disabled
autoFilter	Filter	disabled
pivotTables	Use PivotTable reports	disabled
objects	Edit objects	enabled
scenarios	Edit scenarios	enabled

• ws['!autofilter']: AutoFilter object following the schema:

type AutoFilter = {
  ref:string; // A-1 based range representing the AutoFilter table range
}

Chartsheet Object

Chartsheets are represented as standard sheets. They are distinguished with the !type property set to "chart".

The underlying data and !ref refer to the cached data in the chartsheet. The first row of the chartsheet is the underlying header.