When an org buffer coding system is "utf-8-with-signature-unix" (the first 3 bytes in file are 0xEF 0xBB 0xBF), export to ODT gives following LibreOffice error when opening the exported file :
"The file 'test.odt' is corrupt and therefore cannot be opened. LibreOffice can try to repair the file. [etc...]".
If we set the encoding to "utf-8-unix" (no BOM), export is correct, and LibreOffice does not complain.
To reproduce: Create a minimal org buffer, change the coding system (set-buffer-file-coding-system) to "utf-8-with-signature-unix", then export to ODT (C-c C-e o o), and open the generated odt file with LibreOffice.
Note: Export to different formats (html, PDF, LaTeX) look correct.
Versions:
System: Xubuntu 20.04.1 LTS (focal)
Emacs: 27.1
Org: 9.4
LibreOffice: 6.4
Regards,
br.
Attachement: test.org, a faulty org file (with Byte Order Mark).
$ file test.org
test.org: UTF-8 Unicode (with BOM) text
------------------------------------------------------------------------
Emacs : GNU Emacs 27.1 (build 1, x86_64-pc-linux-gnu, GTK+ Version 2.24.32)
of 2020-10-29
Package: Org mode version 9.4 (9.4-29-g20374f-elpaplus @ /home/br/.emacs.d/elpa/org-plus-contrib-20201102/)
current state:
==============
(setq
org-src-mode-hook '(org-src-babel-configure-edit-buffer
org-src-mode-configure-edit-buffer)
org-link-shell-confirm-function 'yes-or-no-p
org-babel-after-execute-hook '(org-redisplay-inline-images)
org-metadown-hook '(org-babel-pop-to-session-maybe)
org-clock-out-hook '(org-clock-remove-empty-clock-drawer)
org-html-format-inlinetask-function 'org-html-format-inlinetask-default-function
org-odt-format-headline-function 'org-odt-format-headline-default-function
org-ascii-format-inlinetask-function 'org-ascii-format-inlinetask-default
org-startup-folded 'content
org-mode-hook '(my/org-mode-hook org-tempo-setup
#[0 "\300\301\302\303\304$\207"
[add-hook change-major-mode-hook org-show-all append local] 5]
#[0 "\300\301\302\303\304$\207"
[add-hook change-major-mode-hook org-babel-show-result-all append
local]
5]
org-babel-result-hide-spec org-babel-hide-all-hashes
#[0 "\301\211.\207" [imenu-create-index-function org-imenu-get-tree]
2]
org-eldoc-load)
org-odt-format-drawer-function #[514 "\207" [] 3 "\n\n(fn NAME CONTENTS)"]
org-archive-hook '(org-attach-archive-delete-maybe)
org-confirm-elisp-link-function 'yes-or-no-p
org-agenda-before-write-hook '(org-agenda-add-entry-text)
org-metaup-hook '(org-babel-load-in-session-maybe)
org-bibtex-headline-format-function #[257 "\300.\236A\207" [:title] 3 "\n\n(fn ENTRY)"]
org-latex-format-drawer-function #[514 "\207" [] 3 "\n\n(fn _ CONTENTS)"]
org-babel-pre-tangle-hook '(save-buffer)
org-tab-first-hook '(org-babel-hide-result-toggle-maybe org-babel-header-arg-expand)
org-babel-load-languages '((calc . t) (emacs-lisp . t) (sql . t) (perl . t)
(shell . t))
org-html-text-markup-alist '((verbatim . "%s
")
(verbatim . "%s
")
(verbatim . "%s
")
(verbatim . "%s
")
(verbatim . "%s
")
(verbatim . "%s
")
(bold . "%s") (code . "%s
")
(italic . "%s")
(strike-through . "%s")
(underline . "%s")
(verbatim . "%s
"))
org-ascii-format-drawer-function #[771 ".\207" [] 4 "\n\n(fn NAME CONTENTS WIDTH)"]
org-agenda-loop-over-headlines-in-active-region nil
org-src-lang-modes '(("arduino" . arduino) ("browser" . html) ("redis" . redis)
("php" . php) ("C" . c) ("C++" . c++) ("asymptote" . asy)
("bash" . sh) ("beamer" . latex) ("calc" . fundamental)
("cpp" . c++) ("ditaa" . artist) ("dot" . fundamental)
("elisp" . emacs-lisp) ("ocaml" . tuareg)
("screen" . shell-script) ("shell" . sh) ("sqlite" . sql))
org-src-preserve-indentation t
org-occur-hook '(org-first-headline-recenter)
org-cycle-hook '(org-cycle-hide-archived-subtrees org-cycle-hide-drawers
org-cycle-show-empty-lines
org-optimize-window-after-visibility-change)
org-todo-keywords '((sequence "TODO" "STARTED" "WAITING" "|" "DONE" "CANCELED"))
org-support-shift-select t
org-speed-command-hook '(org-speed-command-activate org-babel-speed-command-activate)
org-odt-format-inlinetask-function 'org-odt-format-inlinetask-default-function
org-babel-tangle-lang-exts '(("perl" . "pl") ("emacs-lisp" . "el") ("elisp" . "el"))
org-export-before-parsing-hook '(org-attach-expand-links)
org-confirm-shell-link-function 'yes-or-no-p
org-link-parameters '(("attachment" :follow org-attach-follow :complete
org-attach-complete-link)
("id" :follow org-id-open)
("eww" :follow org-eww-open :store org-eww-store-link)
("rmail" :follow org-rmail-open :store org-rmail-store-link)
("mhe" :follow org-mhe-open :store org-mhe-store-link)
("irc" :follow org-irc-visit :store org-irc-store-link :export
org-irc-export)
("info" :follow org-info-open :export org-info-export :store
org-info-store-link)
("gnus" :follow org-gnus-open :store org-gnus-store-link)
("docview" :follow org-docview-open :export org-docview-export
:store org-docview-store-link)
("bibtex" :follow org-bibtex-open :store org-bibtex-store-link)
("bbdb" :follow org-bbdb-open :export org-bbdb-export :complete
org-bbdb-complete-link :store org-bbdb-store-link)
("w3m" :store org-w3m-store-link) ("file+sys") ("file+emacs")
("shell" :follow org-link--open-shell)
("news" :follow
#[514 "\301\300\302.Q.\"\207" ["news" browse-url ":"] 6
"\n\n(fn URL ARG)"]
)
("mailto" :follow
#[514 "\301\300\302.Q.\"\207" ["mailto" browse-url ":"] 6
"\n\n(fn URL ARG)"]
)
("https" :follow
#[514 "\301\300\302.Q.\"\207" ["https" browse-url ":"] 6
"\n\n(fn URL ARG)"]
)
("http" :follow
#[514 "\301\300\302.Q.\"\207" ["http" browse-url ":"] 6
"\n\n(fn URL ARG)"]
)
("ftp" :follow
#[514 "\301\300\302.Q.\"\207" ["ftp" browse-url ":"] 6
"\n\n(fn URL ARG)"]
)
("help" :follow org-link--open-help)
("file" :complete org-link-complete-file)
("elisp" :follow org-link--open-elisp)
("doi" :follow org-link--open-doi))
org-latex-format-headline-function 'org-latex-format-headline-default-function
org-export-allow-bind-keywords t
org-link-elisp-confirm-function 'yes-or-no-p
org-latex-format-inlinetask-function 'org-latex-format-inlinetask-default-function
org-tab-before-tab-emulation-hook '(org-tempo-complete-tag)
org-html-format-drawer-function #[514 "\207" [] 3 "\n\n(fn NAME CONTENTS)"]
org-html-format-headline-function 'org-html-format-headline-default-function
org-src-window-setup 'current-window
org-indent-mode-turns-on-hiding-stars nil
org-link-from-user-regexp "\\
\\|\\"
org-publish-project-alist '(("org" :base-directory "~/org" :base-extension "org"
:publishing-directory "~/dev/www/cf.bodi/org" :recursive
t :publishing-function org-html-publish-to-html
:html-head-include-default-style nil
:html-head-include-scripts nil)
("static" :base-directory "~/org/" :base-extension
"css\\|js\\|png\\|jpg\\|gif\\|pdf\\|mp3\\|ogg\\|swf"
:publishing-directory "~/dev/www/cf.bodi/org/"
:recursive t :publishing-function org-publish-attachment)
)
)