Visum-specific matrix file formats
                                        The following table includes all Visum-specific matrix file formats that you can open and/or save in Visum.
| 
                                                         Format code  | 
                                                    
                                                         Description  | 
                                                    
                                                         Notes  | 
                                                
| 
                                                         $V  | 
                                                    
                                                         Standard Visum format, symmetrical (Number of origin objects x number of destination objects)  | 
                                                    
                                                         Text format For PuT skim matrices, the part V format is provided additionally.  | 
                                                
| 
                                                         $O  | 
                                                    
                                                         An OD pair per row: Origin object, destination object, matrix value  | 
                                                    
                                                         Text format Only values not equal to zero are displayed.  | 
                                                
| 
                                                         $E  | 
                                                    
                                                         An origin object per row: Minus sign, origin object no., destination object numbers (sorted in ascending order) and matrix values  | 
                                                    
                                                         Text format  | 
                                                
| 
                                                         $S  | 
                                                    
                                                         An origin object per row: Origin object no., destination object numbers (sorted in ascending order) and matrix values  | 
                                                    
                                                         Text format Only provided for Save operations in Visum.  | 
                                                
| 
                                                         $T  | 
                                                    
                                                         Partial matrix or asymmetric matrix (Number of origin objects x number of destination objects)  | 
                                                    
                                                         Text format  | 
                                                
Depending on the settings made for saving matrices, it is possible to save the following additional parameters (Saving matrices):
| 
                                                         Parameters  | 
                                                    
                                                         Description  | 
                                                
| 
                                                         D  | 
                                                    
                                                         Number of decimal places for the matrix values (if > 0) Data file format code without D means, that the matrix values are integers.  | 
                                                
| 
                                                         M  | 
                                                    
                                                         Number of the transport mode (only for the part V format)  | 
                                                
At the end of the matrix file, in section $NAMES, the numbers and the name of the source and target objects are listed.

