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If you have Microsoft Excel on your computer, then that may be set as the default program for opening a CSV file, which means that it is the program that will open if you double-click a CSV file. One of the most common is when you are generating files from a database, as the CSV filetype is one of the most universal file types that can be read by both software programs and databases. The CSV file type is a very versatile one, and it is used in a number of different types of applications.
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