:file header argument no longer assume "file" :results
The "file" :results value is now mandatory for a code block returning a link to a file.
The :file or :file-ext header arguments no longer imply a "file" result is expected.
[[https://emacs.stackexchange.com/questions/54695/no-graphic-output-for-matlab-src-block-in-org-mode?newreg=dc27c692d7d949989ba432459d370995][Answer in stackexchange]]
** Include templates in org babel
Use:
: M-x org-insert-structure-template
Or keybinding
: C-c C,
Then choose an option (src, example, center, comment)
Or use org-tempo. To include a src code block in the document:
: <s TAB
Change the letter for each option that you need (a, C, c, E, e... for "export ascii",