WKS to XLS Converter
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What is a WKS file?
WKS is a spreadsheet format originally used by Lotus 1-2-3 and later by Microsoft Works. It contains rows and columns of data, formulas, and simple formatting.
This format is now considered obsolete, but older WKS files can still be accessed through legacy software or converted for use in modern spreadsheet programs like Excel or LibreOffice Calc.
How to open WKS files
WKS files can be opened using older versions of Microsoft Works or Lotus 1-2-3. Some modern spreadsheet tools like LibreOffice Calc and Microsoft Excel may support legacy WKS files.
You can also convert WKS to XLS or ODS using AnyConv for better compatibility with current applications.
Key facts about WKS
- Full name: Lotus/Microsoft Works Spreadsheet
- Extension: .wks
- MIME type: application/vnd.ms-works
- Developed by: Lotus / Microsoft
- Initial release: 1985
Useful links and resources
What is a XLS file?
XLS is the proprietary spreadsheet format used by Microsoft Excel prior to the introduction of XLSX in 2007. It uses a binary file structure and supports formulas, charts, macros, and formatting.
XLS files remain widely compatible and are still used in many organizations. However, XLSX offers better performance and security.
How to open XLS files
XLS files can be opened using Microsoft Excel, Google Sheets, LibreOffice Calc, and other spreadsheet applications. They support charts, formulas, and formatting.
To ensure compatibility and security, convert XLS to XLSX or ODS using AnyConv or within Excel itself.
Key facts about XLS
- Full name: Microsoft Excel Binary File Format
- Extension: .xls
- MIME type: application/vnd.ms-excel
- Developed by: Microsoft
- Initial release: 1987
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❓ Frequently Asked Questions
- Do I need to register to convert WKS files?Not at all! You can convert WKS to XLS without signing up or installing anything.
- Is it safe to convert WKS to XLS on AnyConv?Absolutely. All WKS and XLS files are securely handled and automatically deleted after 1 hour. Nobody can access your data.
- Will the quality change after converting WKS to XLS?We do our best to preserve the original quality during WKS to XLS conversion. The result is accurate and clean.
- How long does it take to convert WKS to XLS?Most conversions from WKS to XLS take just a few seconds — even for larger files.
- Can I upload more than one WKS file?Yes, batch conversion is supported. You can convert multiple WKS files to XLS at once — fast and easy.
- What browsers support WKS to XLS conversion?All modern browsers! Chrome, Firefox, Safari, Edge — AnyConv runs online and supports converting WKS to XLS on any platform.