What do i use to clean the excess glue off my hardwood flooring?

You MUST look at the container the glue/adhesive came out of.If the warning is that only mechanical means after adhesive has cured is stated then you blew it,only sanding past the finished surface including re-staining will do.If that’s not the case than determine if it’s oil based or water based,then follow the directions such as some oil based products will require a verathane remover ,no matter what there’s alot of “elbow grease” required GET TO WORK.