Thanks for reporting your issue with the libreoffice snap. Unfortunately, snaps are restricted from accessing files in hidden folders because this is often where other applications keep their configuration files. If you still need to access these files with libreoffice, you should use the libreoffice installed from apt, rather than the snap, as this should work just fine.
** Changed in: libreoffice (Ubuntu) Status: New => Won't Fix -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to libreoffice in Ubuntu. https://bugs.launchpad.net/bugs/1862707 Title: LibreOffice Snap (6.4.0.3; 2/10/2020) can't open documents from ".hidden" directories Status in libreoffice package in Ubuntu: Won't Fix Bug description: When in Nautilus, trying to open (double-clicking) any file associated with LibreOffice generates this error: "Access to /home/MyName/.LevelOne/Reports/2020-01-01_Report.xls File .xls was denied." The same behavior happens if you already have a Libre app (Calc, Writer, etc.) running, and try to use the Open file dialog. This occurs even though Tools-> Options-> General-> "Use Libre Dialogs" is unchecked. (Also, of course, Nautilus Show Hidden Files option on.) All file/dir owner:group permissions were checked and are user level (not owned by root:root). Renaming all directories in the file path to remove the leading dot (.) allows the files to open normally and Libre works as expected. (Unfortunately, there about 175 files/directories I'm working on.) LibreOffice was installed through official Ubuntu Software Store - Canonical (LibreOffice Snap Store (6.4.0.3; 2/10/2020). ===== System Info: $ lsb_release -rd Description: Ubuntu 18.04 LTS (beaver-three-eyed-raven X92) Release: 18.04 ----- $ apt-cache policy libreoffice libreoffice: Installed: (none) Candidate: 1:6.0.7-0ubuntu0.18.04.10 Version table: 1:6.0.7-0ubuntu0.18.04.10 500 500 http://us.archive.ubuntu.com/ubuntu bionic-updates/universe amd64 Packages 500 http://security.ubuntu.com/ubuntu bionic-security/universe amd64 Packages 1:6.0.3-0ubuntu1 500 500 http://us.archive.ubuntu.com/ubuntu bionic/universe amd64 Packages ----- To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libreoffice/+bug/1862707/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp