@Ultwa That's a windows thingy. You need to de associate the .oiv extension using Default Apps in Settings.
If it doesn't work, you need to do it through regedit, I highly recommend doing regedit way with a detailed explaination guide.
If the text icon doesn't bother you, you can let it stay.
Last alternative is right click > Open With > Choose Default App and choose 7zip or OpenIV.