<p>Dear all,</p>
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<p> i am a new birt learner, when i generate a multi sheet excel file and pdf. i want to set the file's property to be 'read only'. </p>
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<p> i have no idea how to do that, does birt has that function?? i search the internet and there is no related info.</p>
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<p>please help ... </p>
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<p>thanks !</p>
