@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...PaperSize = PaperSizeType.Custom; // Set custom paper size for A1 (width:...