Edit text deletes next letter

if i try to place cursor before a letter it highlights the actual letter then as i type it deletes everything in front. i only want to correct spelling not delete everything in front of the cursor
thanx m

I think what you have described is Overwrite mode.

Check the “status bar” at the bottom of the LibO window. Does it look like this?


If so, to get back to “insert” mode, you can either double-click that “overwrite” label, or, if your keyboard has an INS key, press that to toggle the mode.

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Supposedly, you have pressed Ins key inadvernently, and now you are in “overwrite” mode. Just press Ins again.