To turn off the Drag and Drop feature of Excel (small + sign-accessible when moving the mouse pointer to the lower right corner of a cell)
- Click File> Options> Advanced tab
- In the "Editing options section" uncheck the box next to "Enable Fill handle and cell drag-and-drop"
- validate with the Ok button
This document, titled « Excel - Disable the Fill handle feature », is available under the Creative Commons
license. Any copy, reuse, or modification of the content should be sufficiently credited to CCM