During May 2025, Dommicent Leendert focused on improving the reliability of the EPPlusSoftware/EPPlus repository by addressing a critical issue in stream handling. He identified and resolved a bug where the input stream was being read twice, which could have led to data inconsistencies for downstream consumers. By removing the redundant code block and ensuring the stream was processed correctly, Dommicent stabilized the core import and export workflows. His work demonstrated a strong command of C# and file I/O, applying careful attention to stream management. This targeted fix enhanced the accuracy and trustworthiness of EPPlus’s data processing routines.