The .WPD, the .DBF, and the .PST: Free Tools That Open Files Windows Forgot
A tax return arrived as a WordPerfect .WPD, an old client database was a .DBF, and a family mail archive was a .PST. Windows 11 pretended none of them existed. I tested free viewers and converters to see which ones opened the files cleanly, which ones wrecked the formatting, and which ones tried to install junk.