Pelican:
I cannot think of a better way to get people to change to Libra Office, but Microsoft have got their fingers in that too. Sorry, rant over!!
Sorry to disappoint you but m$ DO NOT have their fingers in Libre Office or even Apache OpenOffice.
Several years ago m$ were invited to join the Open Document Foundation to standardise the
office document file format between office software. To cut a long story short m$ adulterated the given source code and it became a proprietary file format (.docx/.xlsx/.pptx).
To see the differences between .odt and docx. This applies to .ods, .odp and .xlsx and .pptx.
https://support.office.com/en-us/article/Differences-between-the-OpenDocument-Text-odt-format-and-the-Word-docx-format-d9d51a92-56d1-4794-8b68-5efb57aebfdcLibre Office, Apache OpenOffice and m$ are NOT clones of each other and should not
be treated as such.
If you are forced to create a .doc file, save as a .odt as usual, and create a copy as a .doc file. Be sure to select Word 97 / 2000 / XP as it is the most recent format. Word 95 and Word 6.0 .doc formats are very old and obsolete and less comprehensive than Word 97 / 2000 / XP .doc format. For example, Word 95 and Word 6.0 file format cannot store Draw objects.
If you attempt to save a document as any format other than .odt, Writer warns you that you may lose data and / or formatting as in the pop-up window below. Unfortunately, many users switch off this warning. If you do not get this warning message, you can switch it back on with
Tools > Options > LoadSave > General ...You can export the file as a .pdf which is uneditable but will retain any incompatible formatting.
Otherwise if you are exchanging many documents between each other you really need to consider
both using the same proprietary software to eliminate the differences between them.
Jim