xlsx

Mostly coherent spreadsheet-processing skill with low evidence of malicious intent. The main security issue is the undocumented recalc.py dependency: it is central to execution, auto-configures LibreOffice, and cannot be verified from the skill text, so the skill is suspicious from an install-trust perspective but not overtly malicious.

This module is primarily a LibreOffice headless recalculation wrapper, but it also conditionally writes a LibreOffice Basic macro (Module1.xba) into the user’s LibreOffice profile directory and then invokes it via vnd.sun.star.script. That combination (persistent host modification + Office/LibreOffice macro execution) is a strong security red flag for supply-chain risk because the macro payload can potentially execute arbitrary actions in the LibreOffice process context. The provided fragment is incomplete around macro_content, so the exact payload cannot be verified here; treat this as high-risk and require inspection of the actual macro content and packaging process, ideally in a sandbox.