How to Convert a TXT File to SRT
The SubRip program takes subtitle information from movies and videos and saves it in a text file using the .srt extension. Due to the relative popularity of this open source subtitle-ripping software, the file type has gained support outside its original maker: it's supported by QuickTime, Windows Media Player and even YouTube--among others. There can be some difficulty in making an .srt file, however; though the format is easy enough, saving the file with the proper extension could prove challenging.
Windows XP and Vista
Log in to an account with Administrator privileges and open the file you wish to convert to .srt. Save the file to the "Documents" folder ("My Documents" in Windows XP) and close it.
Click "Start," then "Control Panel." Click "Appearance and Personalization" ("Appearance and Themes" in Windows XP) and select "Folder Options."
Click the "View" tab. In the "Advanced Settings" box, make sure the "Hide extensions for known file types" box is unchecked, then click "OK."
Find the file you wish to change from .txt to .srt. Right click on the file and click "Rename." Type in the new name with the .srt file extension ("titleofthefile.srt," for example) and press "Enter."
Click "Yes" on the warning box. The file is now in .srt format and is appropriate for use as a subtitle file.
Log into an Administrator account and, as above, save the document to the "Documents" folder.
Open Windows Explorer and press "Alt" on your keyboard, then "T."
Click "Folder Options," then continue from Step 3 in the "Windows XP and Vista" section.