## 3.2. Open Case Command

The Open Case command can be used to open existing CFX-Pre case files (.cfx), as well as implicitly start a new case by opening a *.def, *.mdef, *.res, .ccl, “full” transient results file (*.trn), or backup file (*.bak). Other supported file types include: Mesh or Simulation Database file (*.cmdb or *.dsdb), and GTM Database file (.gtm).

Note: If a case is already open, Open Case is not available. To open cases, ensure that all open cases are saved (if required) and closed.

1. Select File > Open Case.

   The Load Case File dialog box appears.

2. Select a location to open the file from.

3. Under Files of type, select the type of file to open.

   - Case files can be selected. CFX case files (*.cfx) contain all of the physics, region, and mesh information for your case. For details, see Opening Case (.cfx) Files.

   - CFX-Solver input or result files can be selected. For details, see Opening CFX-Solver Input (.def, .mdef), Results (.res), Transient (.trn) or Backup (.bak) Files.

   - CCL files can be selected. For details, see Opening CCL (.ccl) Files.

   - Mesh or Simulation Database files can be selected. For details, see Opening Meshing (.cmdb or .dsdb) Files.

   - GTM Database files can be selected. For details, see Opening CFX-Mesh (.gtm) Files.

4. Select the file to open and click Open.

Note: When CFX-Solver input or results files from a previous release of CFX are opened in CFX-Pre, physics errors are highlighted in red in the message area. If these errors are ignored, a case can still run in the CFX-Solver in many cases, but it is recommend that the errors be fixed. This ensures CCL is updated to the current version. These errors are usually fixed easily by right-clicking on the object and selecting Auto Fix Physics. Also, double-clicking on the error in the message area opens the details view in which the error was made. For details, see Physics Errors from Old .def/.res Files. Also, the Command Editor can be used to correct CCL. For details, see Command Editor Dialog Box.

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