Sample Data File [Hacks]
Update 09-22: I would recommend to use a service like mockaroo.com instead, for your daily dummy-data requirements :)
I've recently created a sample data file containing 100k records with randomly generated names and companies.
Such file can be useful for testing data-manipulation tools, connectors and form submissions (with the caveat of email-addresses not reply-able, as they are fake).
You can grab the sample data files here:
CSV: https://www.dropbox.com/s/geefpr0wafv57gp/Dummy001.csv?dl=0
XLS: https://www.dropbox.com/s/lc8lou2ul71yter/Dummy001.xlsx?dl=0