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Password protection of Excel file


We are currently evaluating the Aspose.Cells product for .NET and would like to test the following functionality:

1) Password protect an entire Excel file (.xls or .xlsx) such that it cannot be opened for viewing or editing unless the user enters the correct password.

2) Merging 2 or more Excel files into a single file with multiple sheets (one sheet for each merged file).

Your assistance with this is greatly appreciated.

Ronny Shahrabani

Hi Ronny,

Thank you for contacting Aspose support.

  1. Please check the article on protecting spreadsheets with Aspose.Cells for .NET APIs.
  2. In order to combine multiple spreadsheets in a single file, please use the Workbook.Combine method. Please check the code snippet shared in your other thread for demonstration.