Convert wk3 to xltm

  1. Download and install the latest version of Filestar.

  2. Right click on one or more Wk3 file(s) on your desktop and select Convert with Filestar.

  3. Type convert to xltm in the search box.

  4. Press Convert.

Or let an AI agent do it: filestarcli -i file.wk3 -c "convert to xltm" (how).

Let your AI agent convert WK3 to XLTM

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

Then ask your agent:

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

Or run it yourself:

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

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 XLTM?

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

Using Filestar With AI Agents → · Download SKILL.md

What is the difference between .wk3 and .xltm?

Extension
.wk3
.xltm
Format
Binary
Binary
Category
Spreadsheet
Spreadsheet
Developer
IBM
Microsoft
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.
Template file created by Microsoft Excel, a spreadsheet program; contains default settings and layout properties for a macro-enabled spreadsheet.
MIME Type
application/vnd.lotus-1-2-3
application/vnd.ms-excel.template.macroEnabled.12

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