OpenText Investor Presentation Deck

Reconciliation of Selected Non-GAAP Measures | Q1 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 (recovery of) 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 112,624 29,194 46,581 58,037 555,088 93,903 132,400 56,189 54,993 13,244 182,356 2,883 42,744 103,376 0.38 Three Months Ended September 30, 2020 Adjustments FN GAAP % of Total Revenue 69.0% (836) (1) (442) (1) (517) (1) (58,037) (2) 59,832 (3) (2,342) (1) (4,057) (1) (3,542) (1) (54,993) (2) (13,244) (4) 138,010 (5) (2,883) (6) (3,365) (7) 138,492 (8) 0.51 (8) $ Non-GAAP 111,788 28,752 46,064 614,920 91,561 128,343 52,647 320,366 39,379 241,868 0.89 Non-GAAP % of Total Revenue 76.5% Open Text ©2021 All rights reserved 47

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