How can I mod names into my game?

I'd really appreciate a short (hopefully) guide on how to do this. I have attempted to undertake the task on myself and ended up with a "!LOC!" indicator above staff names. I know there are mods out there that do this but I don't really enjoy the names they're using. regards.

Hi, MedJet, I would like to help you on that! So you must have 2 files to make the mod named.
ModAddon (Most likely you would have it already since you can see the !LOC!)
and
ModStringTableEn (En stands for english)

Keys
* =Must change - Anything that is dotted on both ends you must change

So create a ModStringTableEn or you can change the En for any language like ModStringTableJa (Japanese)
So once you have created it go inside and put

<Database>
<GameDBStringTable ID="ADDON_MOD_*YOUR CODE*">
<LanguageCode>*Your language (First 2 letters only)*</LanguageCode>
<LanguageNameLocalized>*Language name (Full) *</LanguageNameLocalized>
<Contributors>
<Name>*Your name*</Name>
</Contributors>

<LocalizedStrings>

<GameDBLocalizedString>
<LocID>ADDON_MOD_*YOUR CODE*</LocID>
<Text>*YOUR MOD NAME*</Text>
</GameDBLocalizedString>

</LocalizedStrings>
</GameDBStringTable>
</Database>

Do not add spaces, if you want spaces use _

That's it, as simple as it is