Unable to find PDF/CSV in App Integration

I am using UiPath community edition and I have installed PDF and Excel activities which are also being shown in Manage Packages section but still PDF and Excel activities are not visible in activities section

Can somebody help ? Urgent

Try to uninstall and reinstall the packages @Prateek_Dixit

I tried that already. I have also tried uninstalling complete UiPath and installing back again along with reinstallation of Excel and PDF package