My device is google nexus 7 wifi only version.
  I rooted this device by using Team Win Recovery Project.
  I wanted to upgrade to android version 4.3.
So I am learning from this references

1.article
2.video tutorial

I follow their instruction.I selected following items

1. Dalvik Cache
2. System
3. Cache

and I swipe it all.
 

But unfortunately, I found out that there is no file in my device with such name

AOSP-4.3-JWR66V-grouper-rooted_Androguide.zip

I should make it sure that my device has already have this file.
But now i think in my device there is no OS because of my fault, I already swipe it.
Now I cannot access my device by using my pc ( win 7 ).

Could anyone please give me suggestion how can i solve it.

My device is Google Nexus 7 wifi only version. 
I rooted this device by using Team Win Recovery Project. 
I wanted to upgrade to android version 4.3 so I am looked at this article and video

I follow their instructions and I selected following items

• Dalvik Cache
• System
• Cache

and wiped them all.

But unfortunately, I found out that there is no file in my device with such name

AOSP-4.3-JWR66V-grouper-rooted_Androguide.zip

I need to get this file onto my device. But my device has no OS because I already wiped it. Now I cannot access my device using my pc ( win 7 ).

Could anyone please give me suggestions on how can I solve it.