This does not appear to be a sketchup model, can't open file

please help, cant open my file this is the link

The file is almost entirely filled with zeroes. There is nothing to recover.

What version of SketchUp are you really using? You put SketchUp for Schools 2023 in your profile. SketchUp for Schools is a web based version for young school children and there is no 2023 version of it.

Where have you been saving the file while you were working on it?