OpenText Investor Presentation Deck

Reconciliation of Selected Non-GAAP Measures | Q3 FY'21 Three Months Ended March 31, 2021 Adjustments FN (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 OpenText GAAP-based earnings per share / Non-GAAP-based earnings per share- diluted, attributable to OpenText opentext™ $ $ GAAP 123,729 30,953 50,321 53,453 571,665 110,071 158,687 71,548 54,156 2,846 152,396 8,283 31,818 91,490 0.33 GAAP % of Total Revenue 68.6% (505) (1) (464) (1) (684) (1) (53,453) (2) 55,106 (3) (2,146) (1) (4,580) (1) (3,978) (1) (54,156) (2) (2,846) (4) 122,812 (5) (8,283) (6) 1,485 (7) 113,044 (8) (8) 0.42 Non-GAAP 123,224 30,489 49,637 626,771 107,925 154,107 67,570 275,208 33,303 204,534 0.75 Non-GAAP % of Total Revenue 75.2% Open Text ©2022 All rights reserved 50

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