I have already tried the Shift+Ctrl+Alt+Cmd keystroke upon start-up and saying "yes" to clearing the preferences, but unlike previously where this solved the issue (a few months back, until Adobe released an update which meant this was no longer needed) this hasn't worked. I have also tried using both a CSV and a TXT file as the source file, same crash.
Anyone found a solution? I am using Mac OSX.9. Same thing happens on a colleagues Mac, so isn't my machine.
You haven't given us much to go on, but I suspect the problem is in the data file. Open it in a plain text editor and look for odd characters or unexpected line breaks.
This is about all the information I could provide, hence why I was asking a general question. If I'd known what steps to take I wouldn't be asking. I have solved the problem, it seemed to be the InDesign file, not the data file.