I don't get you...
During the process of creating models, you have to use classes with friendly names:
[Table("FXXL$Purchase Line")]
public class PurchaseLine
{
}
Then you have to use the name of class:
public List<PurchaseLine> FXXLPurchaseLine{ get; set; }
See:
Code First Data Annotations - EF6 | Microsoft Docs[
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