Log files. They're there for a reason -- to keep track of what goes on behind the velvet curtain of your operating system. When things go wrong, entries are added to those log files, so you can view ...
When it comes to smartphones, you're more likely to think of standards such as wifi, Bluetooth, and NFC (Near Field Communication) before the old FTP (File Transfer Protocol) technology comes to mind.
You can access four new Copilot skills directly from File Explorer. You can summarize, ask questions, and compare up to five files. The process supports Microsoft 365 files, PDFs, and web files.