ICssInformation.UrlNeedsEscaping Property
If true (the default) the link you provide in Url is not escaped and will be escaped by FlexCel. So for example, the link "http://my site" will be escaped to "http://my%%20site". If the link you provided was already escaped, then set this variable to false.
Syntax
Unit: FlexCel.Render
property ICssInformation.UrlNeedsEscaping: Boolean