Reload

Menu: File > Reload

Default Shortcut Key: Shift+Ctrl+O

Macro function: ReloadFile()

The Reload command can be used to reload the current file from disk, thereby losing any unsaved changes in the file.  Because of the potential for losing changes accidentally, a dialog box will appear to confirm your intention to reload.

The most common use for this command is to restart the editing of a file after having made a large number of unwanted changes. The Undo command can be used to step back through the changes made, but its limits can be exhausted if a large number of changes are made.  In that case, the Reload command must be used.