Although more secure than right-clicking a tab and clicking "Hide," making a worksheet very hidden isn't a fail-safe method ...
Thankfully, Excel makes it easy to hide or unhide rows and columns, allowing you to declutter your spreadsheet and focus on the information that matters most. How to Hide Columns and Rows in Excel ...
You can easily hide columns when working within an Excel spreadsheet - and just as ... You'll find options to hide and unhide both rows and columns. 5. Hover over "Hide & Unhide." ...