TFlexCelPreviewer.AutofitPreview Property
Defines if the page will be automatically zoomed to fit in the preview. Note that zoom will never be less than 10%% or 400%%. If you want to autofit just once, call AutofitPreviewOnce instead.
Syntax
Unit: FlexCel.Preview
property TFlexCelPreviewer.AutofitPreview: TAutofitPreview