OpenText Investor Presentation Deck

Q3 F'23 Target Model Ranges Open Text with Micro Focus (as of Feb 2, 2023) Revenue Type: Cloud Services and Subscriptions Customer Support Annual Recurring Revenue (ARR) License Professional Services and Other Non-GAAP Gross Margin(¹) Non-GAAP Operating Expenses: Research & Development Sales & Marketing General & Admin Depreciation Total Operating Expenses Interest (USD$M) Interest and Other Related Expense Constant Currency Q3 F'23(2,3) % of Total Revenues 35% -37% 46% -48% 82% - 84% 9% -11% 7% -9% 74% -76% opentext™ 17% -19% 21% -23% 9% -11% 2% -4% 52% -54% $115 - $125 Q3 F'23 Target Model ranges before Y/Y FX revenue headwind of $30M to $35M and Y/Y A-EBITDA headwind of less than $5M Micro Focus Onboarding Financial consolidation (starting Feb 1, 2023) Conversion of IFRS to US GAAP Alignment of reporting periods This table is provided on a one-time basis given the timing of the closing date of the Micro Focus acquisition 1. Please refer to "Use of Non-GAAP Financial Measures" at the end of this presentation and "Reconciliation of selected GAAP-based measures to Non-GAAP-based measures" included within our current and historical filings on Forms 10-Q, 10-K and 8-K. 2. Please refer to historical filings, including our Forms 10-K and 10-Q, regarding the company's adjusted tax rate. 3. This model is not guidance. OpenText ©2023 All rights reserved 19

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