Check in to/out from a spreadsheet | Zoho Sheet Help Guide

Check in to/out from a spreadsheet

Checking out of a spreadsheet makes it read-only for all collaborators of the spreadsheet. The edits made to the spreadsheet will also be inaccessible to them, and they'll not be able to make changes to the spreadsheet until you check-in again. Here's how you check in to/out of a spreadsheet.
  1. In the editor, you can click on the Share option on the left top corner.
  2. From there, you can choose to Check in to / Check out from the spreadsheet. 

Alternatively,
  1. Click on the File menu
  2. Choose to Check Out from the drop down menu