FIG. 1 is a front top left side perspective view of an excavator cab exterior showing our new design;
FIG. 2 is a rear top right side perspective view thereof;
FIG. 3 is a front top left side perspective view thereof;
FIG. 4 is a right side view thereof
FIG. 5 is a left side view thereof;
FIG. 6 is a front elevational view thereof;
FIG. 7 is a rear elevational view thereof;
FIG. 8 is a top plan view thereof; and,
FIG. 9 is a bottom plan view thereof.
The broken line showing of an excavator in FIGS. 1 and 2 and the broken line showing in FIGS. 4, 5, 7, and 9 is included for the purpose of illustrating environmental structure and forms no part of the claimed design.