I've tried the SetCellTextHeight function, but it hasn't set the text height. Have tried it before and after the call to SetText:
Dim tblRefAnc As AcadTable = myDocuments.ThisDrawing.ModelSpace.AddTable(insPt, 2, 10, 175, 6120 / 10)
' titles
tblRefAnc.SetColumnWidth(0, 900)
tblRefAnc.SetColumnWidth(1, 500)
tblRefAnc.SetColumnWidth(2, 436)
tblRefAnc.MergeCells(0, 0, 0, 9)
tblRefAnc.SetCellAlignment(0, 0, AcCellAlignment.acMiddleLeft)
tblRefAnc.SetText(0, 0, "Ancillaries Supplied")
tblRefAnc.SetCellTextHeight(0, 0, 16)
I've looked at the Autodesk help for the SetCellFormat method which would be useful if there was an explanation of how the format strings are themselves formatted.
Can someone point me in the right direction please.