Convert WKS to XLS Online — Free & Fast | AnyConv

WKS to XLS Converter

Quickly convert multiple wks files to xls — free & online.

Drag & drop your files here or click to upload

How to convert WKS to XLS online

Follow these simple steps to convert wks files to xls using AnyConv. It works on all devices — Windows, Mac, Linux, iPhone, Android.

Upload your WKS file

Drag & drop your file into the upload area. You can also click to select it manually. Max file size: 100 MB.

Start converting

Hit the “Convert” button to turn your WKS into XLS. The process usually takes just a few seconds.

Download your XLS

Once ready, download your converted file instantly. The download link is private and only works on your device.

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

Useful links and resources

Convert from WKS

Need to change your WKS files to a different format? Below are all the available tools to help you turn WKS into the format you need.

❓ Frequently Asked Questions

Answers to common questions about converting WKS to XLS
  • 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.