I am using Nextcloud on Debian and have a dedicated Collabora Online server installed.
My problem are the templates for OOXML document format. For ODP documents the empty templates are available in the folder
However, from which templates is an empty OOXML (e.g. docx) file created?
The problem is that the default template for blank OOXML documents has Letter page format instead of A4.
Does anyone have a suggestion on how I can solve my problem and change the default page format? Are there any settings to be made on the Collabora server?
Thanks in advance for the help.