There are many questions on this, but no one has come up with the correct answer.
In conclusion, which of the ready-made libraries / SDKs provides ready-made / useful code for creating an Android application that can view: doc, docx, xls, xlsx, ppt, pptx and PDF?
- Redirecting to Apache POI is not an answer, since it does not provide this functionality, only reading (some) of these formats, mapping is required;
- Redirecting to all kinds of applications in the AppStore is not the answer: yes, you can use intentions to open file formats in these applications, but this is not in our own application;
- Redirecting to conversion code is not the answer, as this is not possible in Android. (doc to html and then to PDF and use the PDF viewer? I only saw partial / buggy answers);
- Using Google Docs or other cloud-based display solutions is not possible, offline use is required;
Isn't there a company that provides its own libraries or an open source project / application that implements this?
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