The default folders that FTSplitDef locates the input and output files are specified in Split Options.

To configure the Split options of FTSplitDef:

• Choose Splitting from the Options menu.
• In the Split options dialog box, click the browse "..." button to select the default locations for input and output files.
  • Look in - the default location of raw data files.
  • Split files into - the default location of output files.