One of our readers reported that all the file extensions have changed to some unknown file format. If so, it could be a virus! If a virus has changed all the files extensions to unknown applications, ...

Microsoft is getting more aggressive about insisting that you use its OneDrive cloud for your Windows 11 and Microsoft 365 files. If you'd prefer to keep those files out of the cloud, follow these ...

One should always try to create backups because you don’t know what may come towards you in the future. In this Windows 11 and Windows 10, one can easily create a backup of File History, but for that, ...

Do you want to open a file type or link with a specific app? Here's how to change the default app settings on Windows 11. When you purchase through links on our site, we may earn an affiliate ...

If Microsoft Excel fails to recognize a file in the XLSX or XLS format, the data contained in the file could be corrupted. When you open a corrupted workbook in Excel, the program should automatically ...