Convert wk3 to xhtml

Download and install the latest version of Filestar.
Right click on one or more Wk3 file(s) on your desktop and select Convert with Filestar.
Type convert to xhtml in the search box.
Press Convert.
Or let an AI agent do it: filestarcli -i file.wk3 -c "convert to xhtml" (how).

Let your AI agent convert WK3 to XHTML

Claude Code, Codex, Cursor and other agents can do this on your computer with Filestar. Your files stay on your machine. It works on Windows, macOS only.

Install Filestar and add it to your agents:

npm install -g filestar
filestarcli agent install

Or add it in one click:

Claude Code:

claude mcp add filestar -- npx -y [email protected] mcp

Then ask your agent:

“Convert the WK3 files in my Downloads folder to XHTML”

Or run it yourself:

filestarcli -i file.wk3 -c "convert to xhtml"

Runs on your computer, so your files stay on it. Works on Windows and macOS. 50 free conversions with the npm install, no account needed.

Can my AI agent convert WK3 to XHTML?

Yes. Install the Filestar CLI with npm install -g filestar and your agent can run filestarcli -i file.wk3 -c "convert to xhtml" on your computer, so your files stay on it.

Using Filestar With AI Agents → · Download SKILL.md

What is the difference between .wk3 and .xhtml?

Name: Lotus 3 Worksheet; Extensible Hypertext Markup Language File
Extension: .wk3; .xhtml
Format: Binary; Text
Category: Spreadsheet; Developer
Developer: IBM; The World Wide Web Consortium (W3C)
Description: Lotus 3 Worksheet (WK3) is a spreadsheet file format used by the Lotus 1-2-3 software. It stores tabular data and formulas in rows and columns and is used for data analysis and calculations.; XHTML files are a type of markup language document used to create webpages. It is an XML-based version of HTML and is designed to meet the needs of Web developers. XHTML files have a .xhtml extension and can be viewed in any web browser.
MIME Type: application/vnd.lotus-1-2-3; application/xhtml+xml
Sample: sample.wk3
Wikipedia: .wk3 on Wikipedia; .xhtml on Wikipedia

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