Change Office display language with VBA

[KeepTrying]

Hi Guys,

Small issue yet annoying: I use Excel/VBA in different languages and I'd like a solution where I run a VBA code and display language updates automatically (let's say from English to German).
I'm talking about this setting in Excel:

I assume it can be done with some API or editing appropriate registry value but I'm not a master of these stuff.
Thanks in advance for your help and have a great day.

 

[KeepTrying]

Any ideas? Maybe Jaafar the master of API-s? I need this solution sooo much.

 

[Akihito Yamashiro]

I don't think it can be done by modifying the registry alone. I tried changing the display language setting of my Japanese Excel 2016 to English.
On the way I needed to download and install from Office.com.

And the registries have been modified to be consistent with multiple registries in the following keys:
HKEY_CURRENT_USER\Software\Microsoft\Office\16.0\Common\LanguageResources

I pasted the screenshot below.

Changing registries without knowing the relationship between multiple registries may break Excel itself.
So while one can answer the common question of how to modify the registry, I don't think anyone can answer the question of how to set the display language because nobody wants to take responsibility for breaking Excel.

 

[KeepTrying]

Thanks for your thoughts, you must be right. However it can happen that a solution is risky but I use it because there's no other workaround.

 

[Fluff]

I have no idea if it can be done, but there are certainly problems, as pointed out by @Akihito Yamashiro.
Also I would be very unhappy (to put it mildly) if somebody changed my language settings without my knowledge or permission, especially if it resulted in Office crashing & having to do a full re-install.

Why do you need to change the users language settings?

 

[KeepTrying]

Hi Fluff,
Of course I don't want to change that setting without other's knowledge or permission. It'd be for my own purpose.
Thanks.

 

[Fluff]

But why do you need to?

 

[KeepTrying]

When I teach Excel (and I forgot to set original language back) it's kind of annoying to change it manually then close Excel application and restart (then of course open all workbooks again). Besides sometimes it's easier to check name of an an Excel function/formula etc. in other language by changing display language. Does it make sense?

 

[Fluff]

That does make sense, yes.
However I have no idea how to edit the registry (if that's what's needed).

 

[KeepTrying]

I googled for it but I'm also afraid to edit Registry (mainly with VBA), it's really risky. Anyway, thanks a lot for your feedback.