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What is the difference between an XLS file and a CSV file?


CSV stands for ‘comma separated values.' XLS files are Microsoft Excel’s workbook files.

CSV files contain plain text values separated by, you guessed it, commas. You can open a CSV file in MS Excel, Google Sheets, or even a simple text editor. However, a CSV file can store only a single spreadsheet in a file without any formatting and formulas.

XLS files are Microsoft Excel’s workbook files. Today, they use the extension .xls and .xlsx. They are richer than CSV files and can hold data and other information like formatting, charts, images, formulas, etc.

You can open bolh XLS and CSV files in spreadsheet programs such as Microsoft Excel or Google Sheets. You can also open XLS and CSV files in Gigasheet. In fact, Gigasheet can open these files even when they are too big for Excel or Sheets!

Learn more here:

How to Open Large CSV Files

Excel Max Rows? 1,048,578 is the Limit