OpenText Investor Presentation Deck

Reconciliation of Selected Non-GAAP Measures | Q1 FY'22 (In '000's U.S. dollars, except per share data) COST OF REVENUES Cloud services and subscriptions Customer support Professional service and other Amortization of acquired technology-based intangible assets GAAP-based gross profit and gross margin (%) / Non-GAAP-based gross profit and gross margin (%) Operating expenses Research and development Sales and marketing General and administrative Amortization of acquired customer-based intangible assets Special charges (recoveries) GAAP-based income from operations / Non-GAAP-based income from operations Other income (expense), net Provision for (recovery of) income taxes GAAP-based net income / Non-GAAP-based net income, attributable to Open Text GAAP-based earnings per share / Non-GAAP-based earnings per share- diluted, attributable to Open Text opentext™ SA $ GA GAAP 119,779 29,483 51,725 53,167 574,185 100,165 146,240 71,477 51,884 344 182,689 29,782 43,450 131,915 0.48 Three Months Ended September 30, 2021 Adjustments FN GAAP % of Total Revenue 69.0% $ (907) (1) $ (721) (1) (721) (1) (53,167) (2) 55,516 (3) (2,934) (1) (4,610) (1) (4,041) (1) (51,884) (2) (344) (4) 119,329 (5) (29,782) (6) (6,355) (7) 95,902 (8) 0.35 (8) $ Non-GAAP 118,872 28,762 51,004 629,701 97,231 141,630 67,436 302,018 37,095 227,817 0.83 Non-GAAP % of Total Revenue 75.7% OpenText ©2021 All rights reserved 45

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