Open the
Data Files sub-tree of the
Project menu tree.
Double-click the multi-column data file you want to edit.
The
Edit CSV File window appears.
Choose an appropriate separator for the multi-column data file from the
Separator list box or enter a custom separator.
Modify, add, or delete values from the multi-column data files as required.
Click
OK to save the changes of the multi-column data file and close the window, or click
Save As to save the multi-column data file with a different name.