Convert Lotus 1-2-3 workbook (.wk3) to JSON for free. Choose files, review the available settings and download your results. No account needed.
A later Lotus 1-2-3 workbook format using binary spreadsheet records. It supports moving legacy workbook data into modern table formats.
Exports stored values in up to 8,192 rows, 256 columns and 256 sheets. Formatting, formulas and macros are not retained. Some legacy readers require a character-set choice for multilingual text.
WK3 file format guideStructured data represented using objects, arrays, and values.
JSON file format guideChoose a sheet for CSV, TSV, JSON, HTML, DBF, DIF, SYLK, or WK1 output. Workbook formats export stored cell values. Formulas are not recalculated; macros, charts, and original styling are not preserved.
Processing uses your device when possible and our servers when required. Browser files are limited to 256 MB each; server conversions to 64 MB; browser spreadsheets to 32 MB. Previews show supported content and do not guarantee identical rendering in every application.
