Hi Keith. Sorry for delay in getting back to you, there are are a number of the folders locked the HOME FOLDER is one of them. The 'xls' files in these folders are 'locked' as 'read only' other files 'doc', 'jpg', 'pdf' are all okay. Here is result of your last command :-
[email protected]:~$ cd "/media/kevin/PHILIPS UFD"
[email protected]:/media/kevin/PHILIPS UFD$ ls -l
ls: cannot access '2 - MINT 19.3 HOME FOLDER - Jan 18th 2021': Input/output error
total 384
drwxr-xr-x 38 kevin kevin 32768 Jan 1 12:43 '1 - Mint 19.3 HOME folder. 30 Dec 2020'
d?


?? ? ? ? ? ? '2 - MINT 19.3 HOME FOLDER - Jan 18th 2021'
drwxr-xr-x 11 kevin kevin 32768 Jan 7 16:43 '3 - SECURITY CODES March 2015 to -----[334kb]'
drwxr-xr-x 2 kevin kevin 32768 Apr 26 2019 'ANDREWS VIDEOS [1.5GB]'
drwxr-xr-x 2 kevin kevin 32768 Dec 30 10:37 Downloads
drwxr-xr-x 2 kevin kevin 32768 Jan 1 12:44 'FIREFOX BOOKMARKS- Oct 2020'
drwxr-xr-x 23 kevin kevin 32768 Jan 1 12:56 'Laptop HOME FOLDER -Oct 2020'
drwxr-xr-x 6 kevin kevin 32768 Jul 22 2018 'LINUX MINT !8 SONJA SETTINGS 22 July 2018'
drwxr-xr-x 2 kevin kevin 32768 Apr 26 2019 'Lola, Billy & Ben-ED- 27 Oct-Nov 1.2010 [1.7GB]'
drwxr-xr-x 2 kevin kevin 32768 Jul 22 2017 'Manchester May 2017 [87mb]'
drwxr-xr-x 6 kevin kevin 32768 Sep 1 2019 'Peru Holiday Trip PHOTOS & VIDEOS-March-April 2018 (14.7GB)'
drwxr-xr-x 2 kevin kevin 32768 Jan 18 2020 'System Volume Information'
[email protected]:/media/kevin/PHILIPS UFD$ ls '2 - MINT 19.3 HOME FOLDER - Jan 18th 2021'
Goalie