Reading selectively from a large csv file

[VP]

I have a large csv file with 3 columns: Symbol, Bid, Ask. This file
contains nearly 25000 records per Symbol and there are 5000 symbols.
How do I read in this file selectively for just 1000 symbols?

[Nathan Perrem]

.Q.fs
https://code.kx.com/trac/wiki/DotQ/DotQDotfs

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