Convert x3f to sk

  1. Download and install the latest version of Filestar.

  2. Right click on one or more X3f file(s) on your desktop and select Convert with Filestar.

  3. Type convert to sk in the search box.

  4. Press Convert.

Or let an AI agent do it: filestarcli -i file.x3f -c "convert to sk" (how).

Let your AI agent convert X3F to SK

Claude Code, Codex, Cursor and other agents can do this with Filestar. This skill runs in Filestar's cloud and needs a paid Filestar plan.

Install Filestar and add it to your agents:

npm install -g filestar
filestarcli agent install

Then ask your agent:

“Convert the X3F files in my Downloads folder to SK”

Or run it yourself:

filestarcli -i file.x3f -c "convert to sk"

Runs in Filestar's cloud and needs a Filestar plan.

Can my AI agent convert X3F to SK?

Yes, with a paid Filestar plan: this skill runs in Filestar's cloud. Install the Filestar CLI with npm install -g filestar and your agent can run filestarcli -i file.x3f -c "convert to sk".

Using Filestar With AI Agents → · Download SKILL.md

What is the difference between .x3f and .sk?

Extension
.x3f
.sk
Format
Binary
Binary
Category
Camera
Vector Image
Developer
SIGMA
Skencil
Description
The X3F file format, also known as the SIGMA X3F Camera RAW File, is a proprietary image format developed by Sigma Corporation for storing raw image data captured by Sigma cameras equipped with the Foveon X3 sensor. Unlike standard JPEGs or TIFFs, X3F files contain unprocessed data from the camera's sensor, offering photographers greater flexibility in image editing.
This format is a vector images file in the Sketch Drawing program, which serves to edit and create interface designs, applications and software shells. SK-files contain objects and layers which can be edited independently of each other.
MIME Type
image/x-sigma-x3f
application/x-skencil

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