I am editing in `vi` 

I tried to copy a small part of my paper into a temp file

```
.,.+40!temp.  

```

But I wrote 

```
.,.+40!.  

```

So this removed everything in the important things in the file (other than those 40 lines). Is there any way that I could retrieve the file that I had originally had (about 30 pages) or would I have to start from scratch?