Change the case of text - Microsoft Support
https://support.microsoft.com/en-us/office/change-the-case-of-text-01481046-0fa7-4f3b-a693-496795a7a44d
WEBUnlike Microsoft Word, Microsoft Excel doesn't have a Change Case button for changing capitalization. However, you can use the UPPER, LOWER, or PROPER functions to automatically change the case of existing text to uppercase, lowercase, or proper case.
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