OpenText Investor Presentation Deck

Reconciliation of Selected Non-GAAP Measures | Q1 FY'24 (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 171,412 75,014 79,922 76,824 1,018,418 234,437 271,801 131,211 120, 192 13,794 212,892 20,170 10,352 80,901 0.30 Three Months Ended September 30, 2023 GAAP % of Total Revenue Adjustments FN Non-GAAP 71.4% $ (2,991) (1) $ (1,058) (1) (1,882) (1) (76,824) (2) 82,755 (3) (11,734) (1) (11,807) (1) (7,623) (1) (120,192) (2) (13,794) (4) 247,905 (5) (20,170) (6) 34,313 (7) 193,422 (8) 0.71 (8) $ 168,421 73,956 78,040 1,101,173 222,703 259,994 123,588 460,797 44,665 274,323 1.01 Non-GAAP % of Total Revenue 77.3% © 2023 Open Text 39

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