Explain the usage of the EXT and OVR modes while entering text in word.?

In Word processing applications like Microsoft Word, the EXT (Insert) mode allows users to add new text at the cursor's position without overwriting existing text. In contrast, OVR (Overwrite) mode replaces existing text with new text as the user types, effectively overwriting characters. Users can toggle between these modes to suit their editing needs, typically by pressing the Insert key on their keyboards. This functionality enhances text editing flexibility, allowing for more efficient document management.