The fileAttachment.xlsx() method is currently synchronous: once you call it, the entire workbook is parsed. For very large workbooks this may be prohibitive and a streaming API may be preferred. It could delay work until a specific sheet and range are extracted and stream rows back instead of building them up in memory.
The fileAttachment.xlsx() method is currently synchronous: once you call it, the entire workbook is parsed. For very large workbooks this may be prohibitive and a streaming API may be preferred. It could delay work until a specific sheet and range are extracted and stream rows back instead of building them up in memory.