"Empty" 3D file

Hello! I am new to 3D printing and to this forum, seeking help for a design my friend created. When I open the attached file in the slicer there is no object. Attempting to Slice produces the following error: "G-Code failed to open. Try again." I am using the AnkerMake M5 and the AnkerMake software. We've tried multiple file types, but no luck. What can I do to print this file? Thanks for any advice.

The object is 0.05 x 0.06 x 0.09 millimeters. It's there, too small to see and too small for a 0.40 mm nozzle. Find attached a 1000x scale up of the model, more likely to be correct.

Very kind of you to investigate and fix the problem. Seems like a misplaced decimal point or three, as the 1000x is exactly the size required. Thanks so much.