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Exporting to Excel fails with maximum cell styles exceeded error



The user is having trouble exporting a large decision table to Excel fails with the below error in the logs.

Error Messages

The maximum number of Cell Styles was exceeded. You can define up to 64000 style in a .xlsx Workbook

Steps to Reproduce

  1. Try to export a large (multiple thousand rows) Decision Table to Excel.

Root Cause

A defect in Pegasystems’ code or rules. The Pega engine is creating too many cell styles in the Excel file and running in to the Excel limit.


Apply HFix-34370.

Published May 16, 2017 - Updated October 8, 2020

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