All formats
WKS to JSONLotus 1-2-3
Lotus 1-2-3 workbooks.
Files from Lotus 1-2-3, the dominant spreadsheet before Excel. TabularJS extracts cell values from WKS, WK1, WK3, WK4, and .123 files.
Feature support
Data values
Formulas
Styles
Merged cells
Comments
Column metadata
Formula tokens are complex and only data values are extracted.
Example
js
const result = await tabularjs('vintage.wk1');Why TabularJS for Lotus 1-2-3?
- No external parser dependencies — faster installs, smaller bundles.
- Works identically in Node.js and modern browsers.
- Output is shape-compatible with Jspreadsheet — render parsed data in a live workbook with one call.