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i want to open my encrypt excel workbook using c# ignore('Interop' or any other third party library) and write my closexml data to that excel workbook.


What I have tried:

i tried to write it but it give me error of corrept file
Posted
Updated 1-May-20 1:59am

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Solution 1

You'll need to study the format of Excel documents and write your own parser for them. This is a massive challenge, far from trivial and far beyond a "quick answer". People take years writing these things.
   

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