I have enough entries already, so if you didn't submit yet please keep off. Not awarding yet since I don't have all my 12 files yet. Once I'll have it, I'll send it to the winning entry to convert. I might have more of such work in the next few weeks so even if I don't award your entry now, I may just hire you to do the next job.
You can do it yourself. You can convert all (in a folder) .txt files to .srt within a second. You just need one line of code. I'll give you the code with proper explanation. Please consider entry #20 or #21 to save your time + money. Thank you.
I have converted your sample ".txt" file to a ".srt" file. Feel free to go through my entry #11 to make yourself content with the results and chat me up to send you the sample file. I will be more than happy to help you convert the rest of the 12 files accordingly. Have a nice day!