Formula to change Qty value to list of data

I receive data from a customer such as in file "Applied Data.xls"
Column A is Quantity. Column B is data.

I need to come up with a list of data with individual lines for duplicates rather than a Quantity Column. For example Qty 15 of Data 9929 in first line of file must show "9929" listed 15 times in Column A.

2nd attachment shows the file I need with example data & quantities. Cells A1, "Applied1" and A2 "txtField1" must remain UNCHANGED (but could be added after manually if needed).
Can a formula be written to take data from "Applied Data.xls" and create a new file (or tab) looking like "Applied1.csv" ?

It must work with any number of records. For example, there may be dozens of data records with multiple Qtys required of each.
Open to suggestions. Thanks!