Excel protect workbook with password but allow readonly

问题

Using the interop classes in C# I was able to protect a workbook for reading and writing with a password.

But I want users to be able to open the sheet as read-only.

Is this possible without using the Workbook.SaveAs method?

Protecting a workbook with a password (picture 1) I'm using the Workbook.Password property.

回答1:

According to MSDN, the only way to change the Workbook.ReadOnlyRecommended property is with the Workbook.SaveAs method.

In needed precisely what you're looking for a while ago (i.e. setting it without saving), but had to give in and use SaveAs. To my knowledge it's the only way.

回答2:

Use Workbook.Open(). The 3rd parameter is the read only property.

Plus a link to to the MSDN

来源：https://stackoverflow.com/questions/13138099/excel-protect-workbook-with-password-but-allow-readonly