# Opening files

You can use 3DO PostPro to open Photoshop files and 3DO images or cels.

Follow these steps to open a file:

1. Launch 3DO PostPro. A blank Workbench is automatically displayed.

2. From the File menu, choose Open.

3. Select the file you want to open from the Open dialog. The Document Window for the file appears (see Figure 1).

   Figure 1: Document Window for a coded-6, packed cel.

4. Drag the Document Proxy from the Document Window to the Workbench.

The document appears on the Workbench and the television monitor simultaneously. Figure 2 shows the file displayed on the Workbench.

Figure 2: Document displayed on Workbench.

The number in the lower-left corner of the cel (1) on the Workbench shows the order of the cel-when you display more than one cel at a time.

Displaying multiple cels and reordering them is discussed in Displaying and layering multiple cels.