After install M. office 2019, open terminal:
#### Word
- sudo xattr -cr /Applications/Microsoft\ Word.app
- sudo xattr -lr /Applications/Microsoft\ Word.app
- sudo codesign -f -s - /Applications/Microsoft\ Word.app
- sudo xattr -cr /Applications/Microsoft\ Excel.app
- sudo xattr -lr /Applications/Microsoft\ Excel.app
- sudo codesign -f -s - /Applications/Microsoft\ Excel.app
- sudo xattr -cr /Applications/Microsoft\ PowerPoint.app
- sudo xattr -lr /Applications/Microsoft\ PowerPoint.app
- sudo codesign -f -s - /Applications/Microsoft\ PowerPoint.app