CSV： CSV 是指逗号分隔值。它将纯文本保存为以逗号 (, ) 分隔的一系列行(行)中的一系列值(单元格)。 CSV 文件实际上可以在文本编辑器中打开并阅读。有很多用于读取 CSV 文件的应用程序，并且许多语言都提供了简化读取/写入 CSV 格式的内置功能。这些文件主要由专业人士用于数据分析或可视化。
Excel： Microsoft Excel 用于以水平和垂直行显示数据。数据通常存储在单元格中。我们有一个 Excel 公式选项，可用于数据及其存储位置。您甚至可以添加任何图表、图形等，使其更具表现力。
下表列出了 CSV 文件和 Excel 文件之间的差异：
| SR.NO | CSV | EXCEL |
|---|---|---|
| 1 | CSV stands for Comma separated value. | MS Excel stands for Microsoft Excel. |
| 2 | It is a plain text format with a series of values separated by commas. | It is a binary file that holds information about all the worksheets in a workbook. |
| 3 | CSV can be opened with any text editor in Windows like notepad, MS Excel, Microsoft Works 9, etc. | Excel file can be opened with Microsoft Excel doc only. |
| 4 | It is a standard of saving tabular information into a delimited text file. | It is a spreadsheet application that saves files into its own format. |
| 5 | CSV file saved with extension as .csv. | Excel file saved with extension as .xls/.xlsx. |
| 6 | It consumes less memory than Excel. | It consumes more memory than CSV. |
| 7 | No such feature is available in CSV format when it is compared with Excel. | It also provides the user option for external linking of data from other sources and also the user can do custom add-ins. |
| 8 | It is not easier for the end user to read large files in CSV. | It is easier for the end user to read large files. |