I have an array which is created by reading a csv file

time = CSV.parse(File.read('time.csv'))

time.csv contains

valuea,a,100
valueb,b,200
valuec,c,300

I want to be able to find a particular value but I used
time.index 'valuea' and nothing displays.

I am pretty sure it is because its an array of arrays
eg if i go puts time[0][0] it will display valuea

The 2 dimensional array is what I need but I am not sure how to search
it.
Please help as I am very new at ruby.
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