@amjad.sahi, @Professionalize.Discourse, @John.He, @simon.zhao
worksheet.PageSetup.PaperSize = PaperSizeType.CusTom;
// Set cusTom paper size for A1 (Width: 33.1 Inches, height: 23.4 Inches)
worksheet.PageSetup.CusTom…...How to set excel Custom Paper Size width and height using excel...excel last use column width and height based on style Aspose.Cells...