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Convert wk1 to xltx

  1. Download and install the latest version of Filestar.

  2. Right click on one or more Wk1 file(s) on your desktop and select Convert with Filestar.

  3. Type convert to xltx in the search box.

  4. Press Convert.

Or let an AI agent do it: filestarcli -i file.wk1 -c "convert to xltx" (how).

Let your AI agent convert WK1 to XLTX

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 WK1 files in my Downloads folder to XLTX”

Or run it yourself:

filestarcli -i file.wk1 -c "convert to xltx"

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 WK1 to XLTX?

Yes. Install the Filestar CLI with npm install -g filestar and your agent can run filestarcli -i file.wk1 -c "convert to xltx" on your computer, so your files stay on it.

Using Filestar With AI Agents · Download SKILL.md

What is the difference between .wk1 and .xltx?

Name
Lotus Worksheet
Excel Open XML Spreadsheet Template
Extension
.wk1
.xltx
Format
Binary
Binary
Category
Spreadsheet
Spreadsheet
Developer
IBM
Microsoft
Description
Lotus Worksheet (wk1) is a file type used by the Lotus 1-2-3 spreadsheet application. It is a binary file format used to store worksheets, which can contain numerical and textual data, as well as formulas, charts, and images. It is now considered an obsolete file type and is replaced by the newer xlsx format.
An XLTX file is a template created by Microsoft Excel, a program used for creating spreadsheets.
MIME Type
application/vnd.lotus-1-2-3
application/vnd.openxmlformats-officedocument.spreadsheetml.template
Sample
sample.wk1
sample.xltx
Wikipedia
.xltx on Wikipedia

Convert Wk1 To Xltx Today

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