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Formats/Lotus 1-2-3 worksheet
Spreadsheet

Lotus 1-2-3 worksheet .wk1

What is Lotus 1-2-3 worksheet?

A legacy Lotus 1-2-3 worksheet format. Converting WK1 files to CSV or XLSX can make old table data accessible in current spreadsheet tools.

Single-sheet export with legacy row and column limits. Cell values are retained; original presentation and formulas are not.

Technical details

LibreOffice Calc lists the WPS Lotus Calc filter for .wk1 worksheets. [1]

Background and compatibility

The Lotus import settings allow a character set to be selected, which can affect legacy cell text. [2]

Sources and references
  1. LibreOffice File Conversion Filters TablesThe Document Foundation
  2. LibreOffice Lotus, dBase and Diff Filter ParametersThe Document Foundation

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A table of stored values from the first sheet; up to 100 rows. No formula recalculation.

Conversion support

Export workbook data as XLSX, ODS, CSV, TSV, JSON, or HTML. Text-based exports use the chosen sheet and do not preserve workbook formatting.

Read the format reference on Wikipedia ↗Technical format documentation ↗

File format at a glance

Extension
.wk1
MIME type
application/vnd.lotus-1-2-3
Category
Spreadsheet
Processing
Browser or hosted engine, depending on the conversion
Open WK1 converter

WK1 conversions

CSV to WK1TSV to WK1XLSX to WK1XLS to WK1ODS to WK1XLSB to WK1XLSM to WK1DBF to WK1DIF to WK1SYLK to WK1FODS to WK1WK1 to CSVWK1 to TSVWK1 to JSONWK1 to XLSXWK1 to XLSWK1 to ODSWK1 to HTMLWK1 to XLSBWK1 to XLSMWK1 to DBFWK1 to DIFWK1 to SYLKWK1 to FODSWK1 to WK3WK3 to WK1

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