I have a test.csv file which has data something like this.

```
"a","usa","24-Nov-2011","100.98","Extra1","Extra2"

"B","zim","23-Nov-2011","123","Extra22"

"C","can","23-Nov-2011","123"

```

I want to fetch the maximum number of columns in this file (i,e 6 in this case) and then store this in a variable. 

Like 

Variable=6

I'm aware that this can be acheived in scripting as I have some basic knowledge about scripting. But I have zero programming knowledge in .BAT. 
Please help me regarding this