If you cannot insert, add or create new cells in worksheets in Microsoft Excel, remove cell protection and unmerge the Rows to begin with.

Adding a text to a cell in Excel using Formula requires use of ampersand operator, CONCAT function, or the LEFT, RIGHT, and LEN functions.

How Do I Reference a Cell in Another Worksheet in Excel?. Learning to use Excel worksheets like relational databases can help you save time, eliminating duplication when managing large projects.