I was working on a .txt file on a network drive that had lot of data.
It synched twice approx. in the past and was being displayed in the sync center as an offline/sync error file.
I opened the file multiple times on several days over 2 months and it worked fine every time.

When I tried to open it today it errored out and changed to an older version of the file a month back.
This file was about 140KB size but now it is 18kb.

What might have caused it :
I launched sync center manually on my PC to see something which is the only different thing that i did.
Thereafter as soon as i went back to this file's folder i saw it change from 140 to 18kb.

Is there any way to retrieve it? By looking at another folder where it might be storing it or from another process?
I really want this file back.