ExcelFile.PrintBlackAndWhite Property
If true, page will be printed in "Excel Black and White". Important: This property doesn't mean that the file will be printed in black and white. Instead it means the option in the Page Setup dialog: https://support.microsoft.com/en-us/office/page-setup-71c20d94-b13e-48fd-9800-cedd1fec6da3 Basically, when you select this option no background will be printed, and all foreground colors will be black. So if you have a cell with a black background and a white font, it will print as white background with a black font.
This property modifies PrintOptions
Syntax
Namespace: FlexCel.Core
public abstract Boolean PrintBlackAndWhite { get; set; }