To view the special characters in TDV, one of the best options present is to use a '.dat' file with a File-Delimited data source.
By default, a File-Delimited data source only has '.csv' and '.txt' files in the 'File Name Filter(s)' field.
So, the user needs to add the option to introspect the '.dat' files in TDV, this can be done as shown below:
File Name Filter(s): *.csv,*.txt,
*.dat Now, the '.dat' files should appear in the Resources list while introspecting the data source.
However, when the user executes the '.dat' file, the output with special characters is not displayed as expected.
Screenshot for reference: