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 ...

While there is a way for you to open two Excel workbooks at the same time, you can also open multiple spreadsheets in separate windows. Learn how!

I've got a bunch of 50MB text files (that I have to segment because of Excel's 65k limit), which I want to import into Excel and convert their data in to columns. All of the files have the same ...