Since .rar is a compressed archive format, you will need specific steps to access and run the guide or software:
Analyzing reinforcing elements installed into excavations or slopes as construction proceeds. How to Use the .rar File GA_CFDB.rar
This software is part of the FHWA’s "Comprehensive Foundation Design Bridge" (CFDB) suite. It specifically handles: GA_CFDB.rar
Use a utility like WinRAR , 7-Zip , or The Unarchiver to right-click the file and select "Extract Here." GA_CFDB.rar