Word should be able to open anything you created with Wordpad.
If you want Wordpad back:
If you have access to a computer with any other Windows than W11 24H2,
go to C:\Program Files\Windows NT\Accessories. Copy the whole folder (it's very small, three files) and paste it in the new machine on a location NOT in the Windows folder. That is because some system updates will re-write the system folders and therefore remove Wordpad again. I have a folder under my profile named Oldies and that's where I keep all these old versions, or when they can't be installed there I keep the installers in that folder.
Options to get those files:
- any Windows version prior to 11 24H2
- a Windows.old folder if you have upgraded from a previous version
- download from https://win7games.com/#wordpad (the website is legit and i use it for old versions of software, in particular games)