Show Google Spreadsheet comments is a free Chrome add-on developed by xczas. This add-on falls under the category of Browsers and specifically the subcategory of Add-ons & Tools.

The main purpose of this add-on is to provide a convenient way to view comments in Google Spreadsheets. It adds a button beside the URL bar in Chrome, which, when clicked, opens the comments section in the spreadsheet.

It is important to note that this add-on has only been tested on the English language version of Google Spreadsheets. Additionally, it is recommended to allow some time for the comments to load before using the add-on.

Overall, Show Google Spreadsheet comments is a useful tool for users who frequently work with Google Spreadsheets and need quick access to the comments section.