OpenText Investor Presentation Deck

Reconciliation of Selected Non-GAAP Measures | Q1 FY'23 (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 loss / Non-GAAP-based net income, attributable to OpenText GAAP-based earnings per share / Non-GAAP-based earnings per share-diluted, attributable to OpenText opentext™ SA $ GAAP 131,799 27,354 53,800 42,637 593,688 110,198 167,170 78,074 54,438 14,281 146,353 (189,231) 33,625 (116,929) (0.43) Three Months Ended September 30, 2022 GAAP % of Total Revenue Adjustments FN 69.7% $ SA (2,033) (1) $ (567) (1) (1,525) (1) (42,637) (2) 46,762 (3) (6,854) (1) (6,859) (1) (5,370) (1) (54,438) (2) (14,281) (4) 134,564 (5) 189,231 (6) 50 (7) 323,745 (8) (8) 1.20 Non-GAAP 129,766 26,787 52,275 640,450 103,344 160,311 72,704 280,917 33,675 206,816 0.77 Non-GAAP % of Total Revenue 75.2% © 2023 Open Text 41

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