Go to Text Input, then click Edit.
Click on your Mac.
Hold down the Option key and choose File > New (from the File menu at the top of your screen).
Click the Language pop-up menu in the bottom-left corner of the
If you choose the first item in the Language pop-up menu (System - [language]), you reset the document to the language and region of your computer. If you subsequently change your computer’s language setting, or if you open the document on a computer with a different language setting, the document’s language and region automatically change to match the computer’s. But if you share the document, all users see the document in the language and region of your computer.
Click OK.
After you change the document’s language and region, any new table and chart data you enter reflects the new language. For existing table and chart data, the language in dates (for example, month names) changes, but the punctuation in dates and the order of the day, month, and year don’t change. The punctuation in numbers (for example, the decimal point and thousands separator) does change.