Provider microsoft jet oledb 4.0 extended properties excel 8.0

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From here: instantpages. Got it. It's used for columns with mixed data type. Thanks for the replies — Dimitar Tsonev.

How to Use JET in 64 bit environments. Try this one if the one above is not working. Note that this option might affect excel sheet write access negative. That's the key to not letting Excel use only the first 8 rows to guess the columns data type. Set this value to 0 to scan all rows. This might hurt performance. If the Excel workbook is protected by a password, you cannot open it for data access, even by supplying the correct password with your connection string.

If you try, you receive the following error message: "Could not decrypt file. Use this connection string to avoid the error. Excel file without header row for versions 97 - This improves connection performance. Click to Discover a better way to handle batch data - the EDT software..