data manipulation

I have stocks sale records that i need to be manipulated to go into a tax program. The problem is the partial stock sales denoted by a P at the end of the stock sale line There are a total of approx 3300 records but about 550 that are partial sales which would have to be recalculated Example line of stock sales Date Time Symbol Description Exchange Shares Price Amnt Comm Curr Base Total Code 1 2002-04-05 11:29:43 BRCD RDBK 100 26.8300 -2,683.00 -1.00 USD -2,684.00 2 2002-04-05 11:30:15 BRCD ISLAND -100 26.8910 2,689.10 -1.00 USD 2,688.10 3 2002-04-08 13:55:16 BRCD ISLAND -68 26.1600 1,778.88 -1.00 USD 1,777.88 P 4 2002-04-08 13:55:16 BRCD ISLAND -32 26.1600 837.12 0.00 USD 837.12 P Lines 3 and 4 are partial sales denote by the "P" at the end of the line. The 2 partial sales line need to be added into one line Ex. lines 3 and 4 shares are -68 and -32 totaling -100 The price is calculated by price values of line 3 and 4 1778.88 and 837.12 total = 2616.00 the commission value is just pulled from the first partial line. In this case -1.00 The total for the line would be price plus commission in this case 2616 -1 final line output of line 3 and 4 would be 2002-04-08, 13:55:16 BRCD ISLAND -100 26.16 2616.00 -1.00 USD 2615 line 4 can be retain in the data but may flagged at the end with an x to denote that it has been processes Most partial are 2 lines, but there some that are 3 lines Need either data set after manipulation or small program that would go throught data set and ask or desired operation of specific fields of 2 or 3 line partials More detailed explaination would be given upon contract bid would like work to be compleated as soon as possible. Lines are tab delimited text file : see attachment file Thanks ## Deliverables 1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work [login to view URL] buyer intends to distribute: A software installation package that will install the software in ready-to-run condition on the platform(s) specified in this bid request. 3) All deliverables will be considered "work made for hire" under U.S. Copyright law. Buyer will receive exclusive and complete copyrights to all work purchased. (No GPL, GNU, 3rd party components, etc. unless all copyright ramifications are explained AND AGREED TO by the buyer on the site per the coder's Seller Legal Agreement). ## Platform I am using Windows XP