HI
I am using Groupdocs.merger to add the password to files.
But for excel files it throws this error. But other file types it works fine.
Here with I have attached the sample project for your referance.
Thanks
Tila…...excel file using groupdocs.mergerGroupDocs.Merger Product Family...ConsoleApp1.zip (6.3 KB) GroupDocs.Merger.Exceptions.GroupDocsMergerExcep...
Possible modes for the image joining.... See Also namespace GroupDocs.Merger.Domain.Options assembly...assembly GroupDocs.Merger IUpdatePasswordOptio ImageJoinOptions English...
Initializes new instance of Merger class....GroupDocs.Merger for .NET - API Reference GroupDocs.Merger for...for .NET - API Reference GroupDocs.Merger Merger Class Merger Constructor...
Groupdocs.merger for .NET Split, remove, reorder and combine pages along with security features of a supported format......GroupDocs.Merger for .NET Split, remove, reorder and combine...type Related Products GroupDocs.Merger for Java...
Initializes a new instance of the ExtractOptions class....GroupDocs.Merger for .NET - API Reference GroupDocs.Merger for...Reference GroupDocs.Merger.Domain Namespaces GroupDocs.Merger.Domain...
Possible modes for the page ranging.... See Also namespace GroupDocs.Merger.Domain.Options assembly...assembly GroupDocs.Merger PreviewOptions RemoveOptions English Русский...
Initializes a new instance of the SplitOptions class....GroupDocs.Merger for .NET - API Reference GroupDocs.Merger for...Reference GroupDocs.Merger.Domain Namespaces GroupDocs.Merger.Domain...
Defines page splitting modes....Intervals See Also namespace GroupDocs.Merger.Domain.Options assembly...assembly GroupDocs.Merger SaveOptions SplitOptions English Русский...
Initializes new instance of PageInfo class....GroupDocs.Merger for .NET - API Reference GroupDocs.Merger for...Reference GroupDocs.Merger.Domain Namespaces GroupDocs.Merger.Domain...
Initializes new instance of Merger class....GroupDocs.Merger for .NET - API Reference GroupDocs.Merger for...for .NET - API Reference GroupDocs.Merger Merger Class Merger Constructor...