What does "apply all necessary compatibility settings" do?

[RJSawyer]

I have "MS Word 2007-2021 (.docx)" set as my default file format.

When I go to save a file, I often see a dialog box that say:

Do you want to apply all necessary compatibility settings to make this document compatible with the latest version of Microsoft Word?

[ ] Do not show this warning again

Yes / No

But I can't find anything in the PDF manual or online that explains precisely what compatibility settings are changed if I select this. Help, please!

Also, if I select the "Do not show this warning again" box, will TextMaker default in future to applying the compatibility settings or to not appying them? Or will it simply default to applying them if I select "Yes" and to not applying them if I select "No"?

One more question: I have to share documents with a user who still uses Word 2007. Will choosing "Yes" give him any problems?

Thank you!

[stascheit]

I cannot answer all your questions, but since no-one answered so far, I can maybe give you some hints.

Please have a look into the manual here:
Document properties, View tab

The message appears, because you opened an older file and TextMaker will try to transform it to the compatibilty needs of newer versions.
So I think, when you want to share the file to a user who has older Office versions, you should press "NO".
If you want to automatically let TextMaker transform the file to the needs of newer versions, you should press "YES".

[stascheit]

You can see a list of these compatibilty options, when you click on the "Compatibilty" button on the View tab, but as the manual states, it is not recommended to change these options.

[RJSawyer]

Thank you so much, stascheit! I appreciate your help!

All best wishes!

Rob