# TXL files

A tunnel file is a TXL file. TXL files typically contain a horizontal and vertical alignment along with templates that define the shape of the tunnel.

TXL files that you create by keying in the definition using Trimble Access Tunnels are automatically shown in the map once they are created.

If you are using a TXL file created in Trimble Business Center or that you have converted from a LandXML file, you may need to open the Layer manager and select the file to display it.

The tunnel file must be in the current project folder.

Viewing TXL files in the map

To display a TXL file in the map, tap in the map toolbar to open the Layer manager and select the Map files tab. Tap the TXL file once to make it visible (), and tap it again to make items in the file selectable ().

To change the labels shown in the map, for example to view alignment station values, tap and select Settings and then modify the options in the Display group box.

To rotate the alignment, tap and then tap the map and drag to rotate the view. The icon in the center of the map indicates the point of orbit.

Working with TXL files

From the map, you can select items in TXL files and then use them in other software functions, for example to perform cogo functions, such as a surface inspection. For more information, see Surface inspection.

Converting LandXML files to TXL files

You can convert a LandXML file that defines a tunnel to a Trimble TXL file for use in the Tunnels software.

### Before you start

Go to the Software and utilities page of the Trimble Access Help Portal to download the File and Report Generator utility and install it to your office computer.

Go to the Stylesheets page of the Trimble Access Help Portal to download the LandXML To TunnelXML stylesheet and save it to a folder on your office computer.

### To convert a LandXML file to a txl file

1. On the office computer, select Start / Programs / File and Report Generator to start the File and Report Generator utility.
2. From the Source JobXML or Job file field, select Browse. Set the File of type field to All files. Browse to the appropriate folder and then select the LandXML file to convert.
3. From the Output format field, select the LandXML To TunnelXML stylesheet. Click OK.
4. From the User Value Input screen, select the tunnel surface to be converted. Click OK.
5. Confirm the Save in folder and File name for the txl file and then select Save.
6. When done, select Close.
7. Transfer the TXL file to the controller.