OpenText Investor Presentation Deck

Reconciliation of Selected Non-GAAP Measures | FY'23 Year ended June 30, 2023 (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 590,165 209,705 276,888 223,184 3,168,393 680,587 948,598 419,590 326,406 169,159 516,292 34,469 70,767 150,379 0.56 GAAP % of Total Revenue Adjustments FN 70.6% $ (10,664) (1) (3,627) (1) (6,998) (1) (223,184) (2) (3) 244,473 (39,065) (1) (41,710) (1) (28,238) (1) (326,406) (2) (169,159) (4) 849,051 (5) (6) (34,469) 74,261 (7) 740,321 (8) 2.73 (8) Non-GAAP 579,501 206,078 269,890 3,412,866 641,522 906,888 391,352 1,365,343 145,028 890,700 3.29 Non-GAAP % of Total Revenue 76.1% © 2023 Open Text 45

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