you can download this module from this address:
https://www.nulledfrm.com/threads/universal-import-export-pro-v3-7-1-import-and-export-to-opencart-3-x.102619/
you can this module:
https://www.nulledfrm.com/threads/mass-price-update-for-opencart-3-x.86597/
https://www.nulledfrm.com/threads/mass-products-update-oc-v3x-untouched.84705/