OpenText Investor Presentation Deck

Reconciliation of Selected Non-GAAP Measures | FY'22 YTD Nine months ended March 31, 2022 (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 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 OpenText opentext™ $ GAAP 377,928 90,914 161,459 152,333 1,797,850 321,517 491,133 231,127 160,764 20,592 507,182 29,137 123,757 294,894 1.08 GAAP % of Total Revenue 69.4% Adjustments FN Non-GAAP (3,072) (1) $ (1,631) (1) (2,275) (1) (152,333) (2) 159,311 (3) (9,936) (1) (15,377) (1) (12,800) (1) (160,764) (2) (20,592) (4) 378,780 (5) (29,137) (6) (16,178) (7) 365,821 (8) (8) 1.35 374,856 89,283 159,184 1,957,161 311,581 475,756 218,327 885,962 - 107,579 660,715 2.43 Non-GAAP % of Total Revenue 75.5% Open Text ©2022 All rights reserved 48

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