How to organize the view files online?

Good afternoon. Advise anyone the decision by which it would be possible to arrange a viewing loaded into the system files of the following formats:
pdf, doc, docx, adoc, dwg, dxf, xls, xlsx, ppt, pptx, all formats of pictures.
Option to use preview google docs and similar services are not suitable, because the system is inaccessible from outside the local network (vpn).
June 5th 19 at 21:45
2 answers
June 5th 19 at 21:47
You can use any PHP FTP Manager. It just specify the file formats that you can view/download/edit.
a possible example of this kind of managers? just how much searched, some some formats work, others others. - Vito_Sanford60 commented on June 5th 19 at 21:50
June 5th 19 at 21:49
https://github.com/search?utf8=%E2%9C%93&q=ppt+to+...
and similarly looking for
the extension to html
in addition to images. there's enough img src="the correct path from the root of the site/name.extension" - Vito_Sanford60 commented on June 5th 19 at 21:52
the exception of the bmp ;( - Thomas.Swi commented on June 5th 19 at 21:55
this option will leave for last because I love different libraries to city "garden". I would like to all-in-one was - Thomas.Swi commented on June 5th 19 at 21:58

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