Download and install the latest version of Filestar.
Right click on one or more Gnm file(s) on your desktop and select Convert with Filestar.
Type convert to xlsx in the search box.
Press Convert.
Or let an AI agent do it: filestarcli -i file.gnm -c "convert to xlsx" (how).
Documents - File Explorer─☐✕
This PC › Documents
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Desktop
Downloads
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Pictures
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.gnmContract.gnm
.pdfReport.pdf
.pngLogo.png
.docxNotes.docx
Filestar*Help✕
Drop files here to get started
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Let your AI agent convert GNM to XLSX
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 GNM files in my Downloads folder to XLSX”
Or run it yourself:
filestarcli -i file.gnm -c "convert to xlsx"
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 GNM to XLSX?
Yes. Install the Filestar CLI with npm install -g filestar and your agent can run filestarcli -i file.gnm -c "convert to xlsx" on your computer, so your files stay on it.
Gnumeric Spreadsheet (GNM) is a file type used for storing data and calculations in a spreadsheet application. It is an open source spreadsheet program developed for the GNOME desktop environment and is part of the Gnome Office suite. GNM files can be used for various calculations and data analysis tasks such as graphing, plotting, and sorting.
An XLSX file is an Excel spreadsheet created by Microsoft Excel or another spreadsheet program, such as OpenOffice Calc or Apple Numbers. It stores data in worksheets, which contain cells arranged in a grid of rows and columns, and may also contain charts, mathematical functions, styles, and formatting. XLSX files are commonly used to store financial data and to create simple or complex mathematical models.
