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How do I protect certain cells in a spreadsheet?

Platform: WinForms |
Control: XlsIO |
Published Date: April 30, 2011 |
Last Revised Date: July 18, 2014

All cells in an Excel spreadsheet have a "Locked" property which determines if the cell will be editable when the worksheet is protected. All the cells are set to locked by default, so when a worksheet is protected all the cells in the worksheet get protected by default. However there is often a need to protect certain cells only in a worksheet, In this scenario, we would need to protect a worksheet and set the IsLocked property to false for the cells that you want the end user to edit even when the worksheet is protected.


// Sample data


//A1:A10 will not be protected

sheetOne.Range["A1:A10"].CellStyle.Locked = false;

sheetOne.Range["A1:A10"].Text = "UnLocked";



' Sample data


' A1:A10 will not be protected.

sheetOne.Range["A1:A10"].CellStyle.Locked = false

sheetOne.Range["A1:A10"].Text = "UnLocked"




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