Open a spreadsheet document for read-only access

OpenXML Excel

string FilePath = @"..\..\..\..\Sample Files\";
string FileName = FilePath + "Open a spreadsheet document for read-only access.xlsx";

OpenSpreadsheetDocumentReadonly(FileName);

public static void OpenSpreadsheetDocumentReadonly(string filepath)
{
    // Open a SpreadsheetDocument based on a file path.
    using (SpreadsheetDocument spreadsheetDocument = SpreadsheetDocument.Open(filepath, false))
    {
        // Attempt to add a new WorksheetPart.
        // The call to AddNewPart generates an exception because the file is read‑only.
        WorksheetPart newWorksheetPart = spreadsheetDocument.WorkbookPart.AddNewPart<WorksheetPart>();
        // The rest of the code will not be called.
    }
}

Aspose.Cells

string FilePath = @"..\..\..\..\Sample Files\";
string FileName = FilePath + "Open a spreadsheet document for read-only access.xlsx";

OpenSpreadsheetDocumentReadonly(FileName);

public static void OpenSpreadsheetDocumentReadonly(string filepath)
{
    // Open a SpreadsheetDocument based on a file path.
    Workbook workbook = new Workbook(filepath);
}

Download Running Code Example

• GitHub

Sample Code

• GitHub