When you double-click on a file in Windows, it will automatically open a default program that is configured to manage these types of files. It is common, though, want or need to use a different ...

When you see the Photos can’t open this file because the format is unsupported or the file is corrupted, you can fix it in the following ways. Make sure the file format is supported Check if the file ...

Mac OS X computers use a default application to open every file type based on its file extension. If you don't want to use the default application when opening a file, you can select "Open With" from ...

Ming Lai wants to know how backup programs handle files that are currently open and changing. Ming actually asked something much more specific: How does Mozy backup open TrueCrypt vault files. I’ll ...