How to Open Multiple CSV Files in One Excel Spreadsheet. The CSV file extension appears on text documents that contain comma-separated values. Like spreadsheet data, each line in a CSV file ...

Opening Local Files The Analyst Application supports many different file formats, including SAS data sets, Excel spreadsheets, Lotus spreadsheets, SPSS portable files, and delimited files. You can ...

Though DAT files, which house data as the shortened name implies, are usually best left alone, here's how you can open them.

You can then open that file in Excel and make the data available for immediate use in whatever manner you desire.