Is there any library for generating ods/xlsx documents? [closed]

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I need to edit xlsx/ods files.

I thought, it should have been a library for this, as far as task seems relatively common. I checked current answers on on SO, but I was unable to found appropriate solution.

My requirements are:

• Support for docx or odf
• Open source
• C++ / C
• Cross-platform (Linux/Windows)

I do not need to render documents, only edit them (read data and apply some transformations).

Also, I understand that above documents are just zip archives of xmls, I'm looking for some library that provides some high-level API.

Answer 1

For Open XML (docx, xlsx), try http://libopc.codeplex.com/