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I am trying to generate an excel export of my contacts ( about 14000 rows & 270 columns) and After selecting the fields and clicking on "Export", I get the following error : Internal Server ...
"ValueError: ("column Index (%r) not an int in range(256) ...."
do you have any idea what it means ?
I am using odoo v11 community
The underlying python module used to process excel files does not support more than 256 columns.
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