Calculating gain and loss for stock trading for hundreds or thousands of trades

I have read all the rules regarding reporting and understand FIFO and Bed & Breakfasting, but when there are many hundreds or thousands of individual trades involved, many with buys and sells on the same day, FX fees involved due to purchasing US shares, it's going to be almost impossible to calculate that before the deadline to submit the return expires. It would literally take me a week just to work it out for one stock. Is the CSV file provided by 212 acceptable for CGT purposes?

Hi ,
 

Customers are able to send virus free additional information as electronic PDF attachments when they file their SA returns online. No other type of online attachments will be accepted by the department.  Customers who file online using SA Online will be limited in respect of the number of attachments and the maximum total file size.  Other software products are available for customers to purchase to enable them to file online. Customers using this third party software may have no limit on the number of PDF attachments they can send, but the file size limit will still apply. Thank you .

That doesn't answer my question or help in the slightest. Never mind, I have since found some software which accurately calculates the gain/loss taking into account the three rules.