Download and install the latest version of Filestar.
Right click on one or more Cel file(s) on your desktop and select Convert with Filestar.
Type convert to arrow in the search box.
Press Convert.
Or let an AI agent do it: filestarcli -i file.cel -c "convert to arrow" (how).
Let your AI agent convert Affymetrix CEL to ARROW
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 Affymetrix CEL files in my Downloads folder to ARROW”
Or run it yourself:
filestarcli -i file.cel -c "convert to arrow"
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 Affymetrix CEL to ARROW?
Yes. Install the Filestar CLI with npm install -g filestar and your agent can run filestarcli -i file.cel -c "convert to arrow" on your computer, so your files stay on it.
An Affymetrix CEL file holds the probe intensities of one GeneChip microarray scan: for every probe cell its x and y position, intensity, standard deviation and pixel count, as the v4 binary GCOS format or the older v3 text format. The data behind gene-expression analyses; GEO distributes these files, usually gzipped.
An Arrow IPC file holds a data table in Apache Arrow's in-memory columnar layout, so it can be memory-mapped and read without conversion. Feather version 2 files are the same format.
