excel2srt is a very simple app to convert timecode and subtitles in Excel spreadsheet to SRT subtitle. Most common irregular timecode format can be auto corrected by excel2srt.
–Put your Start Timecode / End Timecode / Subtitle Text to 3 columns separately.
–Put the spreadsheet to the first sheet in Excel file.
If you have any question or bug report, please send email to firstname.lastname@example.org, better have your excel file for bug fixing.