Simplify Excel file sharing and exporting. Learn how to collaborate in the cloud, email files, and manage formats with ease.

DAT files are files with an extension that isn't associated with a specific application or program and can be almost any type of file including video, media or text. Gaining access to the DAT files ...

When you first installed Microsoft Excel, it should have registered itself as the default program for opening compatible file types, such as .xlsx or .xls. Installing other spreadsheet programs may ...