Download and install the latest version of Filestar.
Right click on one or more Plt file(s) on your desktop and select Convert with Filestar.
Type convert to xls in the search box.
Press Convert.
Or let an AI agent do it: filestarcli -i photo.plt -c "convert to xls" (how).
Let your AI agent convert PostScript Plot File to XLS
Claude Code, Codex, Cursor and other agents can do this on your computer with Filestar. Your files stay on your machine.
Install Filestar and add it to your agents:
npm install -g filestar
filestarcli agent install
Then ask your agent:
“Convert the PostScript Plot File files in my Downloads folder to XLS”
Or run it yourself:
filestarcli -i photo.plt -c "convert to xls"
Runs on your computer, so your files stay on it. Works on Windows, macOS and Linux. 50 free conversions with the npm install, no account needed.
Can my AI agent convert PostScript Plot File to XLS?
Yes. Install the Filestar CLI with npm install -g filestar and your agent can run filestarcli -i photo.plt -c "convert to xls" on your computer, so your files stay on it.
A PostScript page description saved with a .plt extension (ISR Caddsman plot files do this). Not the HP-GL plotter format that shares the .plt extension - Filestar converts it like any PostScript file, e.g. to PDF.
An XLS file is a spreadsheet file created by Microsoft Excel or exported by another spreadsheet program, such as OpenOffice Calc or Apple Numbers. It contains one or more worksheets, which store and display data in a table format. XLS files may also store mathematical functions, charts, styles, and formatting.
