An example using the IMatrix.Open-method (Python):
matpath=os.path.join(path,'C.mtx') Mat = Visum.Net.Matrices.ItemByKey('1') Mat.Open(matpath)
Alternatively use this way over the demand segment, when the matrix number or code cannot be used (VBA): visum.Net.DemandSegments.ItemByKey('K').ODMatrix.Open(matrixPath) (C#): visum.Net.DemandSegments.get_ItemByKey('K').get_ODMatrix().Open(matrixPath);
To open a new external matrix (VBA):
Dim myNewMatrixEditorObject As IMatrixTable Set myNewMatrixEditorObject = Visum.CreateMatrixTable(matrixPath)
