Choose a category
Pick Vehicles, Weapons, Peds, Roads, or All. The list and the export follow that choice. All includes every category.
Add a name
Click Add Name to insert a row in the category you are viewing, then type the spawn name and display name in the table. On Roads, the spawn name is the street name.
Upload an OXT
In OpenIV, open DLCPack/dlc.rpf/x64/data/lang/american_rel.rpf and export the language file as .oxt. Upload it here. The names that come in are the default game names.
Edit names
Click any display name in the table and type your custom name. Spawn names are editable too - the hash updates when the spawn name changes. The generated OXT updates as you type.
Export
Click Export OXT to download global.oxt in Version 2 30 format. Put it back in the language pack with OpenIV.