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POHow can I edit or unprotect a single cell in a protected Excel sheet from C#?
 

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  1. POHow can I edit or unprotect a single cell in a protected Excel sheet from C#?
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    <p>I'm trying to manipulate an excel file with C# by using Microsoft.Office.Interop.Excel. The workbook I'm trying to manipulate has shared protection between users.</p> <p>I have the file password and I have the password of the cells which I want to access and edit.</p> <p>If I try to do that from Excel, I do the following:</p> <ul> <li>open the file, type the password</li> <li>go to a cell, double click on a cell to edit.</li> <li>a dialogue appears, asking me to provide the password, I provide the password and then I can edit.</li> </ul> <p>I want to do this from a C# application.</p> <p>My current code is as following:</p> <pre><code>xl.Application excelApp = new xl.Application(); excelApp.Visible = true; xl.Workbook newworkbook = excelApp.Workbooks.Open(@"C:\1.xls", 0, false, 5, "password", "", false, xl.XlPlatform.xlWindows, "", true, false, 0, true, false, false); xl.Sheets excelSheets = newworkbook.Worksheets; xl.Worksheet excelWorksheet = (xl.Worksheet)excelSheets.get_Item("Sign On_Off"); excelWorksheet.Select(true); xl.Range myrange = excelWorksheet.get_Range("b16", "b16"); myrange.Value2 = "testing"; </code></pre> <p>The last line gives me this error message:</p> <blockquote> <p>The cell or chart that you are trying to change is protected and therefore read-only.</p> </blockquote> <p>I can't unprotect the whole sheet cause that would mean I will have the file opened exclusively for me only and other users can't save changes.</p> <p>So my question: Is is there is way I can unprotect a cell only?</p> <p>I imagine something like:</p> <pre><code>myrange.unprotect("pw"); </code></pre>
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