Can I export PDF file to Open Office?
I guess you meant to export PDF' to Office ,right?
If yes then please go through the following link.
Export PDFs to Microsoft Office formats | Adobe Acrobat DC tutorials
Open Office is not the same as Microsoft Office...
To answer the question: You can't export a PDF from Acrobat to ODT, but you can to other formats which can be opened in OO, such as .doc, .rtf, .txt, etc.
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