Use the Convert All XCH to PAT command to convert all existing legacy XCH hatch patterns in your drawing into a PAT hatch format. This command is available in the command search. You can convert all XCH patterns of the drawing with or without selecting an XCH hatch pattern in the drawing.
To convert all XCH hatch patterns:
1. Open a drawing.
2. Click in the command search box and enter the command name Convert All XCH to PAT. The command is shown in the commands list. Click the command.
3. In a confirmation dialog box, click Yes.
The configuration option hatch_pattern_convert_all_xch determines the type of XCH hatch patterns to be converted to PAT. If the configuration option value is set to Visible, only the visible non-solid patterns are converted. If the value is set to All, the solid, excluded, and hidden patterns are also converted.