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A1
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@ -34,8 +34,18 @@ Write options are described in the [Writing Options](./api/write-options) sectio
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## Utilities
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Utilities are available in the `XLSX.utils` object and are described in the
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[Utility Functions](./api/utilities) section:
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Utilities are available in the `XLSX.utils` object.
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The following are described in [A1 Utilities](./csf/general#a1-utilities)
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**Cell and cell address manipulation:**
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- `encode_row / decode_row` converts between 0-indexed rows and 1-indexed rows.
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- `encode_col / decode_col` converts between 0-indexed columns and column names.
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- `encode_cell / decode_cell` converts cell addresses.
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- `encode_range / decode_range` converts cell ranges.
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The following are described in the [Utility Functions](./api/utilities):
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**Constructing:**
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@ -60,11 +70,6 @@ Utilities are available in the `XLSX.utils` object and are described in the
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- `sheet_to_formulae` generates a list of the formulae (with value fallbacks).
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**Cell and cell address manipulation:**
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**Miscellaneous**
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- `format_cell` generates the text value for a cell (using number formats).
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- `encode_row / decode_row` converts between 0-indexed rows and 1-indexed rows.
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- `encode_col / decode_col` converts between 0-indexed columns and column names.
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- `encode_cell / decode_cell` converts cell addresses.
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- `encode_range / decode_range` converts cell ranges.
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@ -2,153 +2,157 @@
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sidebar_position: 1
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---
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# Core Concepts
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# Addresses and Ranges
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The "Common Spreadsheet Format" (CSF) is the object model used by SheetJS.
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## Cell Addresses and Ranges
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## Cell Addresses
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Cell address objects are stored as `{c:C, r:R}` where `C` and `R` are 0-indexed
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column and row numbers, respectively. For example, the cell address `B5` is
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represented by the object `{c:1, r:4}`.
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## Cell Ranges
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Cell range objects are stored as `{s:S, e:E}` where `S` is the first cell and
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`E` is the last cell in the range. The ranges are inclusive. For example, the
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range `A3:B7` is represented by the object `{s:{c:0, r:2}, e:{c:1, r:6}}`.
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Utility functions perform a row-major order walk traversal of a sheet range:
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### Column and Row Ranges
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A column range (spanning every row) is represented with the starting row `0` and
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the ending row `1048575`:
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```js
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for(var R = range.s.r; R <= range.e.r; ++R) {
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for(var C = range.s.c; C <= range.e.c; ++C) {
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var cell_address = {c:C, r:R};
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/* if an A1-style address is needed, encode the address */
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var cell_ref = XLSX.utils.encode_cell(cell_address);
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}
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}
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{ s: { c: 0, r: 0 }, e: { c: 0, r: 1048575 } } // A:A
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{ s: { c: 1, r: 0 }, e: { c: 2, r: 1048575 } } // B:C
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```
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## Cell Object
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Cell objects are plain JS objects with keys and values following the convention:
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| Key | Description |
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| --- | ---------------------------------------------------------------------- |
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| | **Core Cell Properties** ([More Info](#data-types)) |
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| `v` | raw value (number, string, Date object, boolean) |
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| `t` | type: `b` Boolean, `e` Error, `n` Number, `d` Date, `s` Text, `z` Stub |
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| | **Number Formats** ([More Info](./features#number-formats)) |
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| `z` | number format string associated with the cell (if requested) |
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| `w` | formatted text (if applicable) |
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| | **Formulae** ([More Info](./features/formulae)) |
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| `f` | cell formula encoded as an A1-style string (if applicable) |
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| `F` | range of enclosing array if formula is array formula (if applicable) |
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| `D` | if true, array formula is dynamic (if applicable) |
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| | **Other Cell Properties** ([More Info](./features)) |
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| `l` | cell hyperlink and tooltip ([More Info](./features/hyperlinks)) |
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| `c` | cell comments ([More Info](./features#cell-comments)) |
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| `r` | rich text encoding (if applicable) |
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| `h` | HTML rendering of the rich text (if applicable) |
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| `s` | the style/theme of the cell (if applicable) |
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Built-in export utilities (such as the CSV exporter) will use the `w` text if it
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is available. To change a value, be sure to delete `cell.w` (or set it to
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`undefined`) before attempting to export. The utilities will regenerate the `w`
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text from the number format (`cell.z`) and the raw value if possible.
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The actual array formula is stored in the `f` field of the first cell in the
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array range. Other cells in the range will omit the `f` field.
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### Data Types
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The raw value is stored in the `v` value property, interpreted based on the `t`
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type property. This separation allows for representation of numbers as well as
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numeric text. There are 6 valid cell types:
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| Type | Description |
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| :--: | :-------------------------------------------------------------------- |
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| `b` | Boolean: value interpreted as JS `boolean` |
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| `e` | Error: value is a numeric code and `w` property stores common name ** |
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| `n` | Number: value is a JS `number` ** |
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| `d` | Date: value is a JS `Date` object or string to be parsed as Date ** |
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| `s` | Text: value interpreted as JS `string` and written as text ** |
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| `z` | Stub: blank stub cell that is ignored by data processing utilities ** |
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<details>
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<summary><b>Error values and interpretation</b> (click to show)</summary>
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| Value | Error Meaning |
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| -----: | :-------------- |
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| `0x00` | `#NULL!` |
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| `0x07` | `#DIV/0!` |
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| `0x0F` | `#VALUE!` |
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| `0x17` | `#REF!` |
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| `0x1D` | `#NAME?` |
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| `0x24` | `#NUM!` |
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| `0x2A` | `#N/A` |
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| `0x2B` | `#GETTING_DATA` |
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</details>
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Type `n` is the Number type. This includes all forms of data that Excel stores
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as numbers, such as dates/times and Boolean fields. Excel exclusively uses data
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that can be fit in an IEEE754 floating point number, just like JS Number, so the
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`v` field holds the raw number. The `w` field holds formatted text. Dates are
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stored as numbers by default and converted with `XLSX.SSF.parse_date_code`.
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Type `d` is the Date type, generated only when the option `cellDates` is passed.
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Since JSON does not have a natural Date type, parsers are generally expected to
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store ISO 8601 Date strings like you would get from `date.toISOString()`. On
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the other hand, writers and exporters should be able to handle date strings and
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JS Date objects. Note that Excel disregards timezone modifiers and treats all
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dates in the local timezone. The library does not correct for this error.
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Type `s` is the String type. Values are explicitly stored as text. Excel will
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interpret these cells as "number stored as text". Generated Excel files
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automatically suppress that class of error, but other formats may elicit errors.
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Type `z` represents blank stub cells. They are generated in cases where cells
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have no assigned value but hold comments or other metadata. They are ignored by
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the core library data processing utility functions. By default these cells are
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not generated; the parser `sheetStubs` option must be set to `true`.
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#### Dates
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<details>
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<summary><b>Excel Date Code details</b> (click to show)</summary>
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By default, Excel stores dates as numbers with a format code that specifies date
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processing. For example, the date `19-Feb-17` is stored as the number `42785`
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with a number format of `d-mmm-yy`. The `SSF` module understands number formats
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and performs the appropriate conversion.
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XLSX also supports a special date type `d` where the data is an ISO 8601 date
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string. The formatter converts the date back to a number.
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The default behavior for all parsers is to generate number cells. Setting
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`cellDates` to true will force the generators to store dates.
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</details>
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<details>
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<summary><b>Time Zones and Dates</b> (click to show)</summary>
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Excel has no native concept of universal time. All times are specified in the
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local time zone. Excel limitations prevent specifying true absolute dates.
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Following Excel, this library treats all dates as relative to local time zone.
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</details>
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<details>
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<summary><b>Epochs: 1900 and 1904</b> (click to show)</summary>
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Excel supports two epochs (January 1 1900 and January 1 1904).
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The workbook's epoch can be determined by examining the workbook's
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`wb.Workbook.WBProps.date1904` property:
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A row range (spanning every column) is represented with the starting col `0` and
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the ending col `16383`:
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```js
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!!(((wb.Workbook||{}).WBProps||{}).date1904)
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{ s: { c: 0, r: 0 }, e: { c: 16383, r: 0 } } // 1:1
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{ s: { c: 0, r: 1 }, e: { c: 16383, r: 2 } } // 2:3
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```
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</details>
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# Common Spreadsheet Address Styles
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## A1-Style
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A1-style is the default address style in Lotus 1-2-3 and Excel.
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Columns are specified with letters, counting from `A` to `Z`, then `AA` to `ZZ`,
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then `AAA`. Some sample values, along with SheetJS column indices, are listed:
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| Ordinal | A1 Name | SheetJS |
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|:--------|:--------|--------:|
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| First | `A` | `0` |
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| Second | `B` | `1` |
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| 26th | `Z` | `25` |
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| 27th | `AA` | `26` |
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| 702st | `ZZ` | `701` |
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| 703rd | `AAA` | `702` |
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| 16384th | `XFD` | `16383` |
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Rows are specified with numbers, starting from `1` for the first row. SheetJS
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APIs that take row indices start from `0` (ECMAScript convention).
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A cell address is the concatenation of column text and row number. For example,
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the cell in the third column and fourth row is "C4".
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A cell range is represented as the top-left cell of the range, followed by `:`,
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followed by the bottom-right cell of the range. For example, the range `"C2:D4"`
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includes 6 cells marked with ▒ in the table below:
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<table><tbody>
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<tr><th> </th><th>A</th><th>B</th><th>C</th><th>D</th><th>E</th></tr>
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<tr><th>1</th><td> </td><td> </td><td> </td><td> </td><td> </td></tr>
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<tr><th>2</th><td> </td><td> </td><td>▒</td><td>▒</td><td> </td></tr>
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<tr><th>3</th><td> </td><td> </td><td>▒</td><td>▒</td><td> </td></tr>
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<tr><th>4</th><td> </td><td> </td><td>▒</td><td>▒</td><td> </td></tr>
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<tr><th>5</th><td> </td><td> </td><td> </td><td> </td><td> </td></tr>
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</tbody></table>
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A column range is represented by the left-most column, followed by `:`, followed
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by the right-most column. For example, the range `C:D` represents the third and
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fourth columns.
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A row range is represented by the top-most row, followed by `:`, followed by the
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bottom-most column. For example, `2:4` represents the second/third/fourth rows.
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### A1 Utilities
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#### Column Names
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_Get the SheetJS index from an A1-Style column_
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```js
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var col_index = XLSX.utils.decode_col("D");
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```
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The argument is expected to be a string representing a column.
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_Get the A1-Style column string from a SheetJS index_
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```js
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var col_name = XLSX.utils.encode_col(3);
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```
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The argument is expected to be a SheetJS column (non-negative integer).
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#### Row Names
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_Get the SheetJS index from an A1-Style row_
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```js
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var row_index = XLSX.utils.decode_row("4");
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```
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The argument is expected to be a string representing a row.
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_Get the A1-Style row string from a SheetJS index_
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```js
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var row_name = XLSX.utils.encode_row(3);
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```
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The argument is expected to be a SheetJS column (non-negative integer).
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#### Cell Addresses
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_Generate a SheetJS cell address from an A1-Style address string_
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```js
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var address = XLSX.utils.decode_cell("A2");
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```
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The argument is expected to be a string representing a single cell address.
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_Generate an A1-style address string from a SheetJS cell address_
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```js
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var a1_addr = XLSX.utils.encode_cell({r:1, c:0});
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```
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The argument is expected to be a SheetJS cell address
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#### Cell Ranges
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_Generate a SheetJS cell range from an A1-style range string_
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```js
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var range = XLSX.utils.decode_range("A1:D3");
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```
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The argument is expected to be a string representing a range or a single cell
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address. The single cell address is interpreted as a single cell range, so
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`XLSX.utils.decode_range("D3")` is the same as `XLSX.utils.decode_range("D3:D3")`
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_Generate an A1-style address string from a SheetJS cell address_
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```js
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var a1_range = XLSX.utils.encode_range({ s: { c: 0, r: 0 }, e: { c: 3, r: 2 } });
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```
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The argument is expected to be a SheetJS cell range.
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129
docz/docs/07-csf/02-cell.md
Normal file
129
docz/docs/07-csf/02-cell.md
Normal file
@ -0,0 +1,129 @@
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---
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sidebar_position: 2
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---
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# Cell Object
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Cell objects are plain JS objects with keys and values following the convention:
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| Key | Description |
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| --- | ---------------------------------------------------------------------- |
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| | **Core Cell Properties** ([More Info](#data-types)) |
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| `v` | raw value (number, string, Date object, boolean) |
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| `t` | type: `b` Boolean, `e` Error, `n` Number, `d` Date, `s` Text, `z` Stub |
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| | **Number Formats** ([More Info](./features#number-formats)) |
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| `z` | number format string associated with the cell (if requested) |
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| `w` | formatted text (if applicable) |
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| | **Formulae** ([More Info](./features/formulae)) |
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| `f` | cell formula encoded as an A1-style string (if applicable) |
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| `F` | range of enclosing array if formula is array formula (if applicable) |
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| `D` | if true, array formula is dynamic (if applicable) |
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| | **Other Cell Properties** ([More Info](./features)) |
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| `l` | cell hyperlink and tooltip ([More Info](./features/hyperlinks)) |
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| `c` | cell comments ([More Info](./features#cell-comments)) |
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| `r` | rich text encoding (if applicable) |
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| `h` | HTML rendering of the rich text (if applicable) |
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| `s` | the style/theme of the cell (if applicable) |
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Built-in export utilities (such as the CSV exporter) will use the `w` text if it
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is available. To change a value, be sure to delete `cell.w` (or set it to
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`undefined`) before attempting to export. The utilities will regenerate the `w`
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text from the number format (`cell.z`) and the raw value if possible.
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The actual array formula is stored in the `f` field of the first cell in the
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array range. Other cells in the range will omit the `f` field.
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### Data Types
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The raw value is stored in the `v` value property, interpreted based on the `t`
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type property. This separation allows for representation of numbers as well as
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numeric text. There are 6 valid cell types:
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| Type | Description |
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| :--: | :-------------------------------------------------------------------- |
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| `b` | Boolean: value interpreted as JS `boolean` |
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| `e` | Error: value is a numeric code and `w` property stores common name ** |
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| `n` | Number: value is a JS `number` ** |
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| `d` | Date: value is a JS `Date` object or string to be parsed as Date ** |
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| `s` | Text: value interpreted as JS `string` and written as text ** |
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| `z` | Stub: blank stub cell that is ignored by data processing utilities ** |
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<details>
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<summary><b>Error values and interpretation</b> (click to show)</summary>
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| Value | Error Meaning |
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| -----: | :-------------- |
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||||
| `0x00` | `#NULL!` |
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| `0x07` | `#DIV/0!` |
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| `0x0F` | `#VALUE!` |
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| `0x17` | `#REF!` |
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| `0x1D` | `#NAME?` |
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| `0x24` | `#NUM!` |
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| `0x2A` | `#N/A` |
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| `0x2B` | `#GETTING_DATA` |
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</details>
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Type `n` is the Number type. This includes all forms of data that Excel stores
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as numbers, such as dates/times and Boolean fields. Excel exclusively uses data
|
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that can be fit in an IEEE754 floating point number, just like JS Number, so the
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`v` field holds the raw number. The `w` field holds formatted text. Dates are
|
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stored as numbers by default and converted with `XLSX.SSF.parse_date_code`.
|
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|
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Type `d` is the Date type, generated only when the option `cellDates` is passed.
|
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Since JSON does not have a natural Date type, parsers are generally expected to
|
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store ISO 8601 Date strings like you would get from `date.toISOString()`. On
|
||||
the other hand, writers and exporters should be able to handle date strings and
|
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JS Date objects. Note that Excel disregards timezone modifiers and treats all
|
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dates in the local timezone. The library does not correct for this error.
|
||||
|
||||
Type `s` is the String type. Values are explicitly stored as text. Excel will
|
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interpret these cells as "number stored as text". Generated Excel files
|
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automatically suppress that class of error, but other formats may elicit errors.
|
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|
||||
Type `z` represents blank stub cells. They are generated in cases where cells
|
||||
have no assigned value but hold comments or other metadata. They are ignored by
|
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the core library data processing utility functions. By default these cells are
|
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not generated; the parser `sheetStubs` option must be set to `true`.
|
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|
||||
|
||||
#### Dates
|
||||
|
||||
<details>
|
||||
<summary><b>Excel Date Code details</b> (click to show)</summary>
|
||||
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||||
By default, Excel stores dates as numbers with a format code that specifies date
|
||||
processing. For example, the date `19-Feb-17` is stored as the number `42785`
|
||||
with a number format of `d-mmm-yy`. The `SSF` module understands number formats
|
||||
and performs the appropriate conversion.
|
||||
|
||||
XLSX also supports a special date type `d` where the data is an ISO 8601 date
|
||||
string. The formatter converts the date back to a number.
|
||||
|
||||
The default behavior for all parsers is to generate number cells. Setting
|
||||
`cellDates` to true will force the generators to store dates.
|
||||
|
||||
</details>
|
||||
|
||||
<details>
|
||||
<summary><b>Time Zones and Dates</b> (click to show)</summary>
|
||||
|
||||
Excel has no native concept of universal time. All times are specified in the
|
||||
local time zone. Excel limitations prevent specifying true absolute dates.
|
||||
|
||||
Following Excel, this library treats all dates as relative to local time zone.
|
||||
|
||||
</details>
|
||||
|
||||
<details>
|
||||
<summary><b>Epochs: 1900 and 1904</b> (click to show)</summary>
|
||||
|
||||
Excel supports two epochs (January 1 1900 and January 1 1904).
|
||||
The workbook's epoch can be determined by examining the workbook's
|
||||
`wb.Workbook.WBProps.date1904` property:
|
||||
|
||||
```js
|
||||
!!(((wb.Workbook||{}).WBProps||{}).date1904)
|
||||
```
|
||||
|
||||
</details>
|
||||
@ -1,5 +1,5 @@
|
||||
---
|
||||
sidebar_position: 2
|
||||
sidebar_position: 3
|
||||
---
|
||||
|
||||
# Sheet Objects
|
||||
@ -1,5 +1,5 @@
|
||||
---
|
||||
sidebar_position: 3
|
||||
sidebar_position: 4
|
||||
---
|
||||
|
||||
# Workbook Object
|
||||
@ -19,8 +19,7 @@ standard, XLS parsing stores core properties in both places.
|
||||
The various file formats use different internal names for file properties. The
|
||||
workbook `Props` object normalizes the names:
|
||||
|
||||
<details>
|
||||
<summary><b>File Properties</b> (click to show)</summary>
|
||||
<details open><summary><b>File Properties</b> (click to hide)</summary>
|
||||
|
||||
| JS Name | Excel Description |
|
||||
|:--------------|:-------------------------------|
|
||||
@ -104,50 +104,7 @@ The A1-style formula string is stored in the `f` field of the cell object.
|
||||
Spreadsheet software typically represent formulae with a leading `=` sign, but
|
||||
SheetJS formulae omit the `=`.
|
||||
|
||||
<details><summary><b>What is A1-style?</b> (click to show)</summary>
|
||||
|
||||
A1-style is the default in Excel.
|
||||
|
||||
Columns are specified with letters, counting from `A` to `Z`, then `AA` to `ZZ`,
|
||||
then `AAA`. Some sample values, along with SheetJS column indices, are listed:
|
||||
|
||||
| Ordinal | A1 Name | SheetJS |
|
||||
|:--------|:--------|--------:|
|
||||
| First | `A` | `0` |
|
||||
| Second | `B` | `1` |
|
||||
| 26th | `Z` | `25` |
|
||||
| 27th | `AA` | `26` |
|
||||
| 702st | `ZZ` | `701` |
|
||||
| 703rd | `AAA` | `702` |
|
||||
| 16384th | `XFD` | `16383` |
|
||||
|
||||
Rows are specified with numbers, starting from `1` for the first row. SheetJS
|
||||
APIs that take row indices start from `0` (ECMAScript convention).
|
||||
|
||||
A cell address is the concatenation of column text and row number. For example,
|
||||
the cell in the third column and fourth row is "C4".
|
||||
|
||||
A cell range is represented as the top-left cell of the range, followed by `:`,
|
||||
followed by the bottom-right cell of the range. For example, the range `"C2:D4"`
|
||||
includes 6 cells marked with ▒ in the table below:
|
||||
|
||||
<table><tbody>
|
||||
<tr><th></th><th>A</th><th>B</th><th>C</th><th>D</th><th>E</th></tr>
|
||||
<tr><th>1</th><td></td><td></td><td></td><td></td><td></td></tr>
|
||||
<tr><th>2</th><td></td><td></td><td>▒</td><td>▒</td><td></td></tr>
|
||||
<tr><th>3</th><td></td><td></td><td>▒</td><td>▒</td><td></td></tr>
|
||||
<tr><th>4</th><td></td><td></td><td>▒</td><td>▒</td><td></td></tr>
|
||||
<tr><th>5</th><td></td><td></td><td></td><td></td><td></td></tr>
|
||||
</tbody></table>
|
||||
|
||||
A column range is represented by the left-most column, followed by `:`, followed
|
||||
by the right-most column. For example, the range `C:D` represents the third and
|
||||
fourth columns.
|
||||
|
||||
A row range is represented by the top-most row, followed by `:`, followed by the
|
||||
bottom-most column. For example, `2:4` represents the second/third/fourth rows.
|
||||
|
||||
</details>
|
||||
["A1-Style"](../general#a1-style) describes A1 style in more detail.
|
||||
|
||||
For example, consider [this test file](pathname:///files/concat.xlsx):
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user