Every data file on your PC should be associated with an application, so that opening the file will open the right program. But the official "right" program isn't always the right one for you.

The One Thing You Should Check Before Opening Any App File PC malware hides out in the open, but you can see through its tricks.

Turn your computer on and go pour yourself a cup of coffee. When you return, the software and files you need to start the day will be open and ready to go.

Learn to always open desktop folders and external folder links in new tab of File Explorer in Windows 11/10 using Folder Options and Regedit.

How to open a .numbers file on a Windows PC To get your .numbers file into a recognisable state for Windows you’ll first need to open it in the iCloud version of Numbers.

Clearing cache files for application opening problems Several readers have reported problems opening specific (or all) applications after using the installing Security Update 2004-05-03.