Visual Basic for Applications (VBA) is the macro language that runs inside Microsoft Office — battery quality teams still use it heavily for Excel-based test reports, automated PPAP documentation, and the one-off automations that bridge between an analyst's workbook and a vendor's data extract. As a hard skill it requires fluency in the Excel object model (Workbooks, Worksheets, Ranges, charts), the editor's debugging tools, and the discipline of writing macros that won't break when the source data shape shifts. Analysts apply this when automating the daily-yield rollup in Excel, when generating PPAP test report templates from raw cell-formation data, and when stitching Excel reports together for engineering reviews where Tableau and Power BI aren't available.
