Is there any library to access OLE Structured Storage from C#?

Question

Can I find some open source library for accessing (reading only is ok) OLE Storage like doc or xls files in c#?

Answer 1

OleDbConnection can handle structured storage as long as the appropriate OLE DB driver is installed on the machine your app is running on.

Excel:

Provider=Microsoft.ACE.OLEDB.12.0;Data Source=c:\myFolder\myExcel2007file.xlsx;
    Extended Properties="Excel 12.0 Xml;HDR=YES";

Text:

Provider=Microsoft.Jet.OLEDB.4.0;Data Source=c:\txtFilesFolder\;
    Extended Properties="text;HDR=Yes;FMT=Delimited";

ConnectionStrings.com has a whole host of other Data Sources that you can access via OLE with the built-in libraries.

Answer 2

An excellent article describes the usage.

COM structured storage from .NET

Answer 3

You can use my open source (MPL) library OpenMCDF for a 100% .net implementation of COM structured storage. A sample COM structured storage file viewer is also available as a usage sample of the library.