How to remove one char from whole dataport?

You can use a replace after the TXT is generated. Do it with notepad.

You can always reopen the file and replace it by code.

You can also use OnAfterFormatField Trigger do do post processing on the text retrieved from the field.

But please explain you problem better.

Hope this helps!

Assuming that you have " in your data and also assuming your FieldStartDelimeter and FieldEndDelimiter are " that it throws the import off.

Perhaps changing the delimeters to <None> will solve your problem (if of course this is the problem?)

Also, as Mattrax has said for Exporting, if you are importing you should import the data into variables where you can use that code to clean up the field and map it back to its Nav field.