The Agent Skills Directory

Local File Generation: The skill is configured to write output files to a relative ./out/ directory. This is a standard practice for creating file artifacts in managed environments.
Use of Standard Libraries: It recommends the use of openpyxl, a widely recognized and well-maintained Python library for spreadsheet manipulation. This represents a standard and expected dependency for the skill's functionality.
Script-Based Artifact Creation: The skill involves generating and executing brief Python scripts to produce the final .xlsx file. This is consistent with the intended purpose of providing a file-based fallback for environments where live Office applications are not available.

xlsx-author