Why didn’t you answer the question concerning the example .ods by @peterwt ?
I checked copies sent back by my students and in fact no trace of the macros.
If your sent-out file contained the macros, the only explanations inside this universe I can see are that
-1- The students had opened the file with Excel, and saved it again later.
-2- The file had an intermediary existence as .xls
or .xlsx
.
(One or another student may have reached it out for help to somebody not knowing about the issue.)
-3- Somebody played a trick on you.
Simply denying permission for execution of document macros will only freeze them, but not delete them if LibreOffice was used.
Knowing that the security macro-settings where tuned appropriately.
What setting exactly (Hopefuilly not Low)
? Was execution permitted on prompt?
On what system? It’s the students that matters if they shall have the macros working.