There are several niche software projects with "Arachne" in the name, including: A micro-framework for web development.
You may be trying to find a specific calibration or bug-report file (like those found in GitHub discussions or Prusa Forums ) that someone named Arachne-0.3.zip to indicate it was a test of the Arachne engine with a 0.3mm layer height. 3. Software Development / GitHub Arachne-0.3.zip
In the 3D printing community, users frequently share project files or bug reports by zipping them. There are several niche software projects with "Arachne"
Occasionally used for small indie tools or game assets. Seams Issue with Arachne – PrusaSlicer – Prusa3D Forum Arachne-0.3.zip