You can select individual cells, all the cells of particular rows or columns, or all the cells in the entire spreadsheet.
How to select individual cells in Google Sheets
Simply click on the cell to select. Hold shift and click other cells to select more than one.
How to select a row or column in Google Sheets
Click on the corresponding letter (if selecting verticle column) or number (if selecting horizontal row).
How to select the entire spreadsheet in Google Sheets
Click on the gray box at the top-left of the spreadsheet—where the numbers and letters begin.
Once you've selected the cells you want text wrap, you click the text wrap button (see image above) and then wrap. You can also:
- Go to Format.
- Select Text wrapping.
- Select Wrap.
What's the difference between "wrap" and "clip"?
When you "clip" text in Google Sheets, the text will appear to stop at the end of the cell. When you click on the cell, however, you can still see the entire text it contains.