### Merge/Replace

When importing a CAD file, PC-DMIS will display the Merge Import Data dialog box if the selected part program already has CAD data associated with it. You can choose to either Merge or Replace the CAD data.

- If you select the Merge (new data) option, PC-DMIS will add the input data to the part program without deleting the existing data.

- If you select the Replace option, PC-DMIS will delete the existing data and replace it with the new input data.

Clicking Back returns you to the Open dialog box.

Note: Some imported file types automatically replace old existing CAD data with the imported data. In those cases, you won't be presented with the Merge Import Data dialog box.