If, for any reason, the location of the attached XRef is changed, when you open the host file, an error message will prompt you to either locate the file and set a new path or ignore the XRef, as shown in Figure 9.23:

When you select the Ignore unresolved reference files option, the host file will open, but the unresolved XRef will not show up in the drawing area. You will also get an exclamation mark next to the name of the XRef in the File References panel of the XRef palette, as shown in Figure 9.24:

If you want to resolve the XRef and specify its new location, then right-click on the unresolved XRef in the XRef palette, select the Select New Path option, locate the XRef in a new path, and click Open. The XRef will be loaded and the new path will be refreshed in the XRef palette as well. Once the XRef is loaded in the drawing, the exclamation mark will also disappear from the XRef palette.

Once you are done making the changes in the XRef palette, click the X mark in the top left of the XRef palette to close it. Transferring XRefs directly can be challenging because if you leave any XRef file, then the host file won't be able to resolve those missing files and will show an incomplete drawing. Fortunately, there is a tool in AutoCAD that makes the process of transferring XRef files very convenient. This tool is called eTransmit. We will discuss this tool in the next section.