Using Scriv created on Mac in Windows Beta

Hi, I have just downloaded windows beta 0.2.1 and I tried opening a .scriv file previously created in the Mac version and saved in my dropbox folder. For some reason it will not open in the windows version.
Would be grateful for any assistance. I have not yet registered my Mac version, which I plan to do later today but I just wanted to make sure that I can use the same files on both the Mac and my windows machine at work.

Any thoughts welcome
best wishes

Hi this is Mosquito again, I believe I have solved the issue. I had a file in there which was left over from a previous conflicted copy issue in my Dropbox folder.
I can now open the file in the Windows version.
best wishes