Concept: Locale and Language
Locale
When you create a workbook, Worksheets assigns your locale and local time
zone to it.
You can change the locale of a workbook in the menu. Worksheets supports only the locales listed in the drop-down
menu. The data in the workbook shows the appropriate numbering format based on the
locale, such as periods for thousands separators instead of commas. The workbook
locale displays on the workbook to the right of the menu bar if the workbook locale
doesn't match the user's profile locale.
Language
Worksheets menu items, panels, and dialogs display in the user's selected
language if that language is available.
Text in the body of the workbook, such as the tooltip text that displays
next to error values (such as #VALUE) or the name of the month in formatted date
values, displays in the language of the workbook locale.