A Comma Separating Tool is a software or online tool that allows users to separate data values into a list by using commas as separators. The tool is commonly used to separate values that are stored in a single column in a spreadsheet or a database, making it easier to analyze and manipulate the data. 

The Comma Separating Tool usually has a simple user interface that allows users to copy and paste the data into a text box or upload a file. The tool then automatically detects the delimiter used in the data and separates it accordingly. In most cases, the tool allows users to choose the delimiter they want to use, such as commas, semicolons, or tabs.

The Comma Separating Tool is commonly used in various fields, such as data science, business, and finance, to process large amounts of data quickly and accurately. It is also useful for anyone who needs to separate data values quickly, such as when cleaning up data from surveys, social media feeds, or web scraping.