How to read more than 256 columns from an excel file (2007 format) using OLEDB

Posted by Nan T on Stack Overflow See other posts from Stack Overflow or by Nan T
Published on 2010-05-04T15:03:59Z Indexed on 2010/05/04 15:08 UTC
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excel

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columns

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I'm trying to import a excel file with more than 256 columns using OLEDB in C#. I tried all kinds of things, but it doesn't seem to be possible to read more than 256 columns from a excel (2007 format) file. I'm wondering if it's a bug or I'm simply missing something. Here is the connection string I used:

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

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