145 lines
6.4 KiB
Markdown
145 lines
6.4 KiB
Markdown
|
---
|
||
|
|
sidebar_position: 2
|
||
|
|
---
|
||
|
|
|
||
|
|
# Sheet Objects
|
||
|
|
|
||
|
|
Excel supports 4 different types of "sheets":
|
||
|
|
- "worksheets": normal sheets
|
||
|
|
- "chartsheets": full-tab charts
|
||
|
|
- "macrosheets": legacy (pre-VBA) macros
|
||
|
|
- "dialogsheets": legacy (pre-VBA) dialogs
|
||
|
|
|
||
|
|
## Generic Sheet Object
|
||
|
|
|
||
|
|
Generic sheets are plain JavaScript objects. Each key that does not start with
|
||
|
|
`!` is an `A1`-style address whose corresponding value is a cell object.
|
||
|
|
|
||
|
|
`sheet[address]` returns the cell object for the specified address.
|
||
|
|
|
||
|
|
### Sheet Properties
|
||
|
|
|
||
|
|
Each key starts with `!`. The properties are accessible as `sheet[key]`.
|
||
|
|
|
||
|
|
- `sheet['!ref']`: A-1 based range representing the sheet range. Functions that
|
||
|
|
work with sheets should use this parameter to determine the range. Cells that
|
||
|
|
are assigned outside of the range are not processed. In particular, when
|
||
|
|
writing a sheet by hand, cells outside of the range are not included
|
||
|
|
|
||
|
|
Functions that handle sheets should test for the presence of `!ref` field.
|
||
|
|
If the `!ref` is omitted or is not a valid range, functions are free to treat
|
||
|
|
the sheet as empty or attempt to guess the range. The standard utilities that
|
||
|
|
ship with this library treat sheets as empty (for example, the CSV output is
|
||
|
|
empty string).
|
||
|
|
|
||
|
|
When reading a worksheet with the `sheetRows` property set, the ref parameter
|
||
|
|
will use the restricted range. The original range is set at `ws['!fullref']`
|
||
|
|
|
||
|
|
- `sheet['!margins']`: Object representing the page margins. The default values
|
||
|
|
follow Excel's "normal" preset. Excel also has a "wide" and a "narrow" preset
|
||
|
|
but they are stored as raw measurements. The main properties are listed below:
|
||
|
|
|
||
|
|
<details>
|
||
|
|
<summary><b>Page margin details</b> (click to show)</summary>
|
||
|
|
|
||
|
|
| key | description | "normal" | "wide" | "narrow" |
|
||
|
|
|----------|------------------------|:---------|:-------|:-------- |
|
||
|
|
| `left` | left margin (inches) | `0.7` | `1.0` | `0.25` |
|
||
|
|
| `right` | right margin (inches) | `0.7` | `1.0` | `0.25` |
|
||
|
|
| `top` | top margin (inches) | `0.75` | `1.0` | `0.75` |
|
||
|
|
| `bottom` | bottom margin (inches) | `0.75` | `1.0` | `0.75` |
|
||
|
|
| `header` | header margin (inches) | `0.3` | `0.5` | `0.3` |
|
||
|
|
| `footer` | footer margin (inches) | `0.3` | `0.5` | `0.3` |
|
||
|
|
|
||
|
|
```js
|
||
|
|
/* Set worksheet sheet to "normal" */
|
||
|
|
ws["!margins"]={left:0.7, right:0.7, top:0.75,bottom:0.75,header:0.3,footer:0.3}
|
||
|
|
/* Set worksheet sheet to "wide" */
|
||
|
|
ws["!margins"]={left:1.0, right:1.0, top:1.0, bottom:1.0, header:0.5,footer:0.5}
|
||
|
|
/* Set worksheet sheet to "narrow" */
|
||
|
|
ws["!margins"]={left:0.25,right:0.25,top:0.75,bottom:0.75,header:0.3,footer:0.3}
|
||
|
|
```
|
||
|
|
</details>
|
||
|
|
|
||
|
|
## Worksheet Object
|
||
|
|
|
||
|
|
In addition to the aforementioned 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. Plain text formats do not support 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['!outline']`: configure how outlines should behave. Options default to
|
||
|
|
the default settings in Excel 2019:
|
||
|
|
|
||
|
|
| key | Excel feature | default |
|
||
|
|
|:----------|:----------------------------------------------|:--------|
|
||
|
|
| `above` | Uncheck "Summary rows below detail" | `false` |
|
||
|
|
| `left` | Uncheck "Summary rows to the right of detail" | `false` |
|
||
|
|
|
||
|
|
- `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:
|
||
|
|
|
||
|
|
<details>
|
||
|
|
<summary><b>Worksheet Protection Details</b> (click to show)</summary>
|
||
|
|
|
||
|
|
| 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 |
|
||
|
|
</details>
|
||
|
|
|
||
|
|
- `ws['!autofilter']`: AutoFilter object following the schema:
|
||
|
|
|
||
|
|
```typescript
|
||
|
|
type AutoFilter = {
|
||
|
|
ref:string; // A-1 based range representing the AutoFilter table range
|
||
|
|
}
|
||
|
|
```
|
||
|
|
|
||
|
|
## Other Sheet Types
|
||
|
|
|
||
|
|
### 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.
|
||
|
|
|
||
|
|
### Macrosheet Object
|
||
|
|
|
||
|
|
Macrosheets are represented as standard sheets. They are distinguished with the
|
||
|
|
`!type` property set to `"macro"`.
|
||
|
|
|
||
|
|
### Dialogsheet Object
|
||
|
|
|
||
|
|
Dialogsheets are represented as standard sheets. They are distinguished with the
|
||
|
|
`!type` property set to `"dialog"`.
|