You are trying to do a spreadsheet and keep it tighter but the vertical column boundary cuts the text off. And you want to stop it. It’s easy. Check it out..
1. Annoying red arrow cut-offs!
2. Highlight cell or row and then right click on it, and ‘format cells’
3. Click that check box ‘wrap text automatically’ 
4. Yay! Bob is my uncle again!
This tutorial brought to you by a thankful user of Libre Office, the default office suite on the best ever operating system, ubuntu.