Honestly, from your description, it sounds like a file permissions issue.
Do an 'ls -l' on the file and see who it belongs to.
Output should look something like this:
-rw-r--r--  1 gandalf gandalf       1359 Jul 29 21:18  slack
If your username isn't shown in the first owner's field, change
ownership to you using the 'chown' command.
Hopefully you can make some progress with this.
On 9/22/19 1:28 AM, Jeff Smith wrote:
Hello There,
Running Ubuntu 19.04 I wanted to install an alternative simple text file  editor. Using the "Ubuntu Software" app I chose two text file editors to  install. Gedit v3.32.0 and Notepad3. Both seemed to install fine. Upon trying
to open a text file in Gedit I am told "You do not have permissions necessary
to open the file." Even  though I created the file and have full read/write  permissions for  the file. The same response is given regardless of what  existing  text file is opened with Gedit. The original/default text file
editor 
opened the same text file(s) fine. 
Now... If that wasn't odd enough I also installed Notepad3 using  the same  "Ubuntu Software" app. Upon trying to open the same text file I am presented  with the error:
 "Error loading z:\home\jeffs\Documents\rules.txt Access Denied".
Looks like Notepad3 thinks it's a Windows app. Notepad3 opens up fine but it  can't open files presumably because it is expecting a Windows filesystem. If  that is the case then why is it being  offered as a Linux editor via the  "Ubuntu Software" app?
Jeff
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