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report_view_file is normally not set and will default to v_report. Unless your view file needs to contain something special in terms of extra processing PHP code, just leave this blank.
report_view_contents is not used. This was originally designed to contain extra PHP processing code. Set report_view_file instead of using this.
report_processing is not used.
report_sort_column is the initial sort column id (starting at 0).
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