Is it possible to specify that a semi-colon should be used as a separator for exports from Web 9.x/10.x to CSV?
It is not currently possible to set the semi-colon as the separator to be used for exports from Web 9.x/10.x to CSV format. This can be determined only for exports to text format under the 'Export Reports' section of the Web Preferences, at both the user and project levels:

An enhancement request has been logged for the ability to specify that a semi-colon should be used as a separator for exports from Web 9.x/10.x to CSV. Please contact Technical Support to request an update with regard to the status of this request.