Collabora language settings

Is there a definitive answer to change language in Collabora?

I want to change language settings in Collabora, not spell checking. The language settings is of great importance in the Calc application, since it changes signs for currency and decimal, format for date and time, as well as thousand separator and much more.

I’ve read some people have added new empty template files, which seems to work for new empty documents.

Not being able to change this makes it pain in the ass to edit spreadsheets, since the default settings uses . as decimal sign, whereas my docs uses , for decimal. Which renders mathematics broken since it interprets decimal values as text instead of a number.