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hello everyone letamp;#39;s discuss about another kind of injection attack that is formal injections so formal injections are also called as CSV Excel macro injection so before going further let me give you one scenario that there is one web application on which we can add it create and export Microsoft Excel spreadsheets so as a penetration tester or a hacker what we can do is we can try to inject something malicious inside that spreadsheet so once we inserted something malicious then we will export that web sheet so if dialog application is vulnerable to formula injection then that web application will not sanitize the user input and expose that website which contains the malicious code injected by an attacker so if any other user will open that Microsoft Excel spreadsheet will get affected and which results in 20 ID injection so here you can see these kinds of vulnerabilities are often found on web applications which having export spreadsheet functionality and this spreadsheet is b