C:\Users\%USERNAME%\AppData\Roaming\Autodesk\Revit\Autodesk Revit [Version]\KeyboardShortcuts.xml
Below is a comprehensive guide to understanding, downloading, and installing Revit shortcut XML files. What is the Revit Shortcut XML File?
Customizing your Revit workflow starts with mastering keyboard shortcuts. While Revit allows you to manualy assign keys in the interface, using a pre-configured XML file is the fastest way to sync settings across multiple workstations or adopt a professional standard.