Highlight all the words that make up the appositive phrase. The scientist, an expert on fossils, showed Tsuyu Asui a Tyrannosaurus
rex skull.

",an expert fossils" is what makes it an appositive phrase

in the spreadsheet, click on a cell, then type the numbers or text you want and press enter or tab. to write data to a new line within a cell, press alt + enter. to enter the same data in several cells at the same time you must select the cells in which you want to enter the same data, in the active cell write the data and press ctrl + enter.

search it up on google or think from your brain make it work harder.