Regarding Excel problem, there is a known bug in PowerPlatform (see https://communities.bentley.com/products/microstation/f/microstation-forum/200796/ceu14---why-doesn-t-paste-from-clipboard-work-the-same-in-ce-as-it-does-in-ss4/604471#604471)
You should enter key-in and you will be able to edit Excel table.
mdl load OLECNTR;olecntr pastemethod