OpenText Investor Presentation Deck

Reconciliation of Selected Non-GAAP Measures | FY'21 (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™ GA GAAP 481,818 122,753 197,183 218,796 2,351,649 421,447 622,221 263,521 216,544 1,748 740,903 61,434 339,906 310,672 1.14 Year Ended June 30, 2021 GAAP % of Total Revenue Adjustments FN 69.4% (3,419) (1) (1,910) (1) (2,565) (1) (218,796) (2) 226,690 (3) (9,859) (1) (18,312) (1) (15,904) (1) (216,544) (2) (1,748) (4) 489,057 (5) (61,434) (6) (188,931) (7) 616,554 2.25 (8) (8) Non-GAAP 478,399 120,843 194,618 2,578,339 411,588 603,909 247,617 1,229,960 150,975 927,226 3.39 Non-GAAP % of Total Revenue 76.1% 53

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