WK5 Converter

Extract text from Lotus 5 worksheets (WK5)


Drop or upload your .WK5 file
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How to extract text from your WK5 file

  1. Click the "Select File" button above, and choose your WK5 file.
  2. You’ll see a preview, if available.
  3. Click the "Convert file to..." button to extract text information.

Convert WK5 to another file type

To convert WK5 worksheets to another format, you need Lotus 1-2-3 or other Spreadsheet software.

Convert a file to WK5

To convert other file formats to the "Legacy Worksheet" file type, you need software like Lotus 1-2-3 or a similar tool.


About WK5 files

A .wk5 file is a legacy spreadsheet generated by Lotus 1-2-3 Release 5. This application, originally developed by Lotus Software and later acquired by IBM, was used extensively in the 1990s for financial and tabular data storage. The format is a proprietary binary container that stores rows, columns, basic formulas, and legacy macros. The primary disadvantage of the .WK5 format is complete obsolescence. Modern web browsers cannot render it, and current spreadsheet software like Google Sheets or recent versions of Microsoft Excel have completely dropped support for it. Attempting to open these files locally usually results in unreadable errors or requires complex legacy software workarounds. To access your old data, you must convert .WK5 files to standardized targets like XLSX for full spreadsheet capability or CSV for raw, universally readable text. Be prepared to lose complex formatting and legacy macros, as only the core cell data typically survives the translation. This closed, proprietary format is notoriously difficult to open or convert today because the original software is dead. Standard online converters frequently fail to parse the outdated binary structure. If our analysis detects recoverable tabular data, viewing or conversion may still be possible.

Convert.Guru analyzes your WK5 file, detects the exact format, and lets you read the text inside.


FAQ

If you want to convert WK5 file to , you can use Lotus 1-2-3 or similar software from the "Legacy Spreadsheet Storage" category. In the File menu, look for Save As… or Export….

To convert files to WK5, try Lotus 1-2-3 or another comparable tool in the "Legacy Spreadsheet Storage" category.



The WK5 Converter Story

The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our WK5 converter.