compared all possibilities with a long test sheet: 0,140625 sec for lastrow = calcws.Cells.Find("*", [A1], , , xlByColumns, xlPrevious).row 0 sec for iLastRow = calcws.Cells(rows.count, "a").End(xlUp).row and numofrows = calcws.Cells.S…
在POI3.8中SXSSF仅仅支持excel2007格式是对XSSF的一种流的扩展.目的在生成excel时候,需要生成大量的数据的时候,通过刷新的方式将excel内存信息刷新到硬盘的方式,提供写入数据的效率. 官方原文如下: SXSSF (Streaming Usermodel API) Note SXSSF is a brand new contribution and some features were added after it was first introduc…
在POI3.8中SXSSF仅仅支持excel2007格式是对XSSF的一种流的扩展.目的在生成excel时候,需要生成大量的数据的时候,通过刷新的方式将excel内存信息刷新到硬盘的方式,提供写入数据的效率. 官方原文如下: SXSSF (Streaming Usermodel API) Note SXSSF is a brand new contribution and some features were added after it was first introduc…