Nigel Westbury - 2007-10-19

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Thanks for reporting this. This exception occurs if you try to save to a file that has an unrecognised extension. With the standard set of plug-ins, the extension must be xml or jmx. The supported file extensions are listed in the file type drop down, but there is nothing to stop you entering your own extension.

The code needs to be changed to give the user a message indicating that the file extension is unknown. The file extension dictates the format in which the data are written, so we cannot allow unrecognized file extensions.