EXCEL SHORTCUT " CTRL + SHIFT + )" NOT WORKING

Many users may discover that the "Ctrl+Shift+)" shortcut for unhiding columns does not work. The issue is that the Microsoft Windows operating system has assigned the "Ctrl+Shift" keys to change the keyboard layouts for Regional/Language settings, which conflicts with Excel operation. Please follow the procedures in this video to alter the Key Sequence and make the shortcut work in Excel. You can also learn about Relative and Absolute Reference here.