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Ruby » Development » csv 
1.Read CSV file
2.Update a CSV file
3.Parse one CSV file line
4.Create data for CSV file
5.Reading and Searching CSV Data
6.use CSV alongside the File class
7.loading the data from a CSV-formatted file into an array is with CSV.read:
8.pick out the first person in the data called Laura:
9.find the people in your database whose ages are between 20 and 40:
10.Saving Data Back to the CSV File
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