When they say: Nice job. They could mean: I haven't looked at it. But they could also mean: It's not great, but at least you got it

Sometimes I feel that my coworker is a bit sloppy in sending deliverables to clients.  How can I get him to listen to me?

Is it OK to ask for more feedback from my boss  I never get any praise or criticism.  Once I managed to ask if a spreadsheet I gave her was