https://www.veritas.com/content/support/en_US/doc/140726178-164220978-0/pgfId-1112401-164220978
The NetBackup IT Analytics Certified Configuration Guide has the information you are seeking. It's fine to upgrade the ITA portal to the latest release. ...
Your link doesn't resolve publicly, but the maximum number of rows that can be exported is controlled via a Custom Parameter, under Admin, System Configuration, Customer Parameters. The parameter is named portal.report.maxRowsExported . The valu...