Download and install the latest version of Filestar.
Right click on one or more Numbers 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.numbers -c "convert to xhtml" (how).
Let your AI agent convert Numbers Spreadsheet ('09) 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.
“Convert the Numbers Spreadsheet ('09) files in my Downloads folder to XHTML”
Or run it yourself:
filestarcli -i file.numbers -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 Numbers Spreadsheet ('09) to XHTML?
Yes. Install the Filestar CLI with npm install -g filestar and your agent can run filestarcli -i file.numbers -c "convert to xhtml" on your computer, so your files stay on it.
A Numbers '09 spreadsheet is a document from Apple's iWork '09 Numbers, stored as XML in a ZIP file, unlike the Protocol Buffers format of Numbers since 2013.
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.
