Bug #6666 Excel doesn't recognize as registered data provider. dllregistr says ...
Submitted: 16 Nov 2004 14:45 Modified: 31 Jul 2007 6:22
Reporter: Ross Carver Email Updates:
Status: Not a Bug Impact on me:
None 
Category:Connector / ODBC Severity:S1 (Critical)
Version:3.51.06 OS:Windows (Windows XP /Pro)
Assigned to: CPU Architecture:Any

File: Maximum allowed size is 50MB.
Description:
Privacy:

If the data you need to attach is more than 50MB, you should create a compressed archive of the data, split it to 50MB chunks, and upload each of them as a separate attachment.

To split a large file: