How to convert new version file into old version like AutoCAD2014 into AutoCAD 2007?

Is there any online method to convert file into previous version?

If there is no new version of AutoCAD available.

Yes, there is a way of converting AutoCAD drawings on line.

Sign up to AutoCAD 360. You can upload any AutoCAD drawing, then download it in a version to suit you.

It can also convert drawings with an Educational stamp, something that the later versions of DWG Trueview are unable to do.

Is it possible to install some program who will make convert recent version of AutoCAD in to previous via previous version (using).

In simple words.

I am unable to open file say 2010 because file is created in 2014 version.

I install some plugin (software) who convert it into the 2010 and I open it in 2010.

Your first post was asking specifically for an online method.

Now you are asking for an installed method. You should try DWG Trueview 2015.

Yeah, offline in case of internet not available.

Anyway Thanks for giving me information.

How to find that software that the DWG Trueview 2015 needs as prerequisite?

Why this software not required for AutoCAD 2014 during installation?

That Framework is a library required to run applications developed in .Net; for AutoCAD 2014 was required a previous version.

You may find said library at Microsoft, free of charge.