I’m writing monstrous spreadsheets that are 200K x 350 columns wide. I need to write 4mm rows over say 20 workbooks. I’m worried about memory. I was able to to create most of them using the standard aspose functions,…... SteveOlson July 3, 2025, 2:32pm 18 Hi, sorry...some more testing. amjad.sahi July 3, 2025, 3:27pm 19 @SteveOlson...