Layer Estimates:

Layer: Sheet1 (ID:0)
Count: 572
Extent:

XMin: -7422492.99629525
YMin: 1194161.58981994
XMax: -7422492.69939554
YMax: 1194161.6375864
Spatial Reference: 102100 (3857)

Layer: Review (ID:1)
Count: 4