Is it possible to save files in lower versions format from higher version software?

in Autocad, Yes you can save to older formats, also many software like Ms office package,  some other software don't allow this, like CSI safe & STAADPro

yes its possible like in auto cad we can save rl-2000 file to rl-2007

es we can save files in lower versions formats from higher version software all we need to do is to use "Save as" option in that software.

No, It is not possible. we can save as iges ir step format to open in lower version.

Yes, we can save 'SAVE AS' option to save file in older version or we can set a default saving option for all files to be saved in older version

yes, by selecting save as option from file menu

yes We can save in lower version.Go to save as option and select the format u r looking for.

yes , you can save file in lower version format

yes, you can save your work in higher or lower version.

For Solidworks, not really. Except by using a 3rd party software known as Backworks.

yes possible to save in lower version