I have been getting this error message "Can't find project or library" on a couple .xlsm files within the past couple weeks. It is deadly. I can't do any of the recommended "fixes" that Microsoft suggests, fix an add-in in the VBA editor that is "missing". The file is basically corrupt. All I can do is go back to a backup and try to figure out what I am missing. Very frustrating. Anyone have any suggestions? The files have been stored both on SharePoint and on a network drive.