How to create a flat file database as shown below

s.no name age city phone
0 hema 22 Calcutta 4312542
1 hema 21 Bangalore 2344345
2 ganesh 25 delhi 2445454
3 kartik 45 pune 4312121
4 santosh 25 Hyderabad 2254231
5 kumar 25 mysore 2344567
6 gita 34 mangalore 6532123
7 gita 32 pune 2213456

Q1.print the details of the person who r from bangalore

Q2.Replace the city name managlore to pune

Q3.prints no of person having name gita and hema

Q4.print how many are of age 25