54 lines
1.5 KiB
Markdown
54 lines
1.5 KiB
Markdown
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## Working with the Workbook
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The full object format is described later in this README.
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This example extracts the value stored in cell A1 from the first worksheet:
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```js
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var first_sheet_name = workbook.SheetNames[0];
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var address_of_cell = 'A1';
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/* Get worksheet */
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var worksheet = workbook.Sheets[first_sheet_name];
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/* Find desired cell */
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var desired_cell = worksheet[address_of_cell];
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/* Get the value */
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var desired_value = (desired_cell ? desired_cell.v : undefined);
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```
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**Complete examples:**
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- <http://oss.sheetjs.com/js-xlsx/> HTML5 File API / Base64 Text / Web Workers
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Note that older versions of IE do not support HTML5 File API, so the base64 mode
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is used for testing. On OSX you can get the base64 encoding with:
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```bash
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$ <target_file base64 | pbcopy
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```
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On Windows XP and up you can get the base64 encoding using `certutil`:
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```cmd
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> certutil -encode target_file target_file.b64
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```
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(note: You have to open the file and remove the header and footer lines)
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- <http://oss.sheetjs.com/js-xlsx/ajax.html> XMLHttpRequest
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- <https://github.com/SheetJS/js-xlsx/blob/master/bin/xlsx.njs> node
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The node version installs a command line tool `xlsx` which can read spreadsheet
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files and output the contents in various formats. The source is available at
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`xlsx.njs` in the bin directory.
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Some helper functions in `XLSX.utils` generate different views of the sheets:
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- `XLSX.utils.sheet_to_csv` generates CSV
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- `XLSX.utils.sheet_to_json` generates an array of objects
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- `XLSX.utils.sheet_to_formulae` generates a list of formulae
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