structure, see the [CiviReport Reference](/framework/civireport.md).
-`templates/CRM/Myextension/Form/Report/MyReport.tpl` contains the report's HTML template. This template usually delegates responsibility to a core template and does not need to be edited.
If one of the existing reports is close to meeting your needs, but requires further PHP or SQL customization, you may simply make a new report based on that report. To copy a report, find the class-name of the original report within the `civicrm/CRM/Report/Form/` directory in the CiviCRM repository. Then run the `civix generate:report` command using the copy option from with your extension directory.
If one of the existing reports is close to meeting your needs, but requires further PHP or SQL customization, you may simply make a new report based on that report. To copy a report, find the class-name of the original report within the `civicrm/CRM/Report/Form/` directory in the CiviCRM repository. Then run the `civix generate:report` command using the copy option from within your extension directory.
For example, this command will copy the activity report in the class `CRM_Report_Form_Activity` to a new report within your extension:
