looks like you are working with z as your up axis and the model was created in a scene using y (which is usually the default in maya). it´s sad that this doesn´t change automatically when opening a file because it can also corrupt your cams. anyway best would be to create a new empty scene, go to your prefs ( windows > settings/preferences > preferences) and in the settings there change your up axis to y. then open the file again.
if this doesn´t help it would be good to upload the file to have a look!
