Unable to access a new USB stick [duplicate]

I have Ubuntu 18.04.2 LTS on my laptop. Got a new USB Stick (Samsung) for storing extra files and I am unable to access it.

When I insert it, the folder shows up but when I click on it, it says:

Unable to access Samsung USB 
- Error mounting ... Samsung USB: Unknown file system Type 'Exfat'

What do I need to do to be able to access it? Please give advice that an absolute IT beginner can handle :)

The USB drive was pre-formatted with the exFAT file system. You have two options: You can either format the disk to use a different file system, or you can install the packages that Ubuntu needs to read and write to the exFAT file system.

To format the disk:

• Open the "Disks" utility (gnome-disk-utility)

• Select your USB device.

• In the top right corner, open the options menu and select Format Disk...

  (Choose a quick format for speed and MBR for compatibility.)

• Now that the disk is formatted, select "create a partition in allocated space" below the map under "Volumes".

• Set the partition size to max.

• Name the volume and select a file system. Note the compatibility descriptions with each choice. FAT/FAT16/FAT32 have the most compatibility and will work on Linux, Mac, & Windows.

To add exFAT capability to your system:

• Open a terminal

  sudo apt update
  sudo apt install exfat-fuse exfat-utils
  

• reboot your system