During May 2025, work focused on enhancing the reliability of the EPPlusSoftware/EPPlus repository by addressing a critical issue in stream handling. The developer 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 correct single-pass processing, the update stabilized core import and export workflows. This contribution demonstrated proficiency in C# and advanced file I/O techniques, with particular attention to stream handling. The fix improved the accuracy and trustworthiness of data operations without introducing new features during the period.