create automated time and replace few keywords excel formulae

[geetethan]

i want to get automated add time for every 00:01:05, example 00:00:00,00:01:05,00:02:10,00:03:15. like this i want upto 5 hours.... example :

[TABLE="width: 500"]
<tbody>[TR]
[TD]A(original)[/TD]
[TD]B (time changed)[/TD]
[TD]C[/TD]
[/TR]
[TR]
[TD]ffmpeg -i zxcv.mp4 -ss 00:00:05 -t 00:00:7 -codec copy output.mp4[/TD]
[TD]ffmpeg -i zxcv.mp4 -ss 00:01:10 -t 00:00:7 -codec copy output.mp4[/TD]
[TD][/TD]
[/TR]
[TR]
[TD][/TD]
[TD]ffmpeg -i zxcv.mp4 -ss 00:02:15 -t 00:00:7 -codec copy output.mp4[/TD]
[TD][/TD]
[/TR]
</tbody>[/TABLE]

see in column B the time has to get updated for every 1 minute 5 seconds.00:01:05,

[TABLE="width: 500"]
<tbody>[TR]
[TD]A ( time was done )[/TD]
[TD]B (keywords for replacing)[/TD]
[TD]C (change output keyword to B column keywords[/TD]
[TD]D[/TD]
[/TR]
[TR]
[TD]ffmpeg -i zxcv.mp4 -ss 00:01:10 -t 00:00:7 -codec copy output.mp4[/TD]
[TD]a[/TD]
[TD]ffmpeg -i zxcv.mp4 -ss 00:01:10 -t 00:00:7 -codec copy a.mp4[/TD]
[TD][/TD]
[/TR]
[TR]
[TD]ffmpeg -i zxcv.mp4 -ss 00:02:15 -t 00:00:7 -codec copy output.mp4[/TD]
[TD]b[/TD]
[TD]ffmpeg -i zxcv.mp4 -ss 00:02:15 -t 00:00:7 -codec copy b.mp4[/TD]
[TD][/TD]
[/TR]
[TR]
[TD]ffmpeg -i zxcv.mp4 -ss 00:03:20 -t 00:00:7 -codec copy output.mp4[/TD]
[TD]c[/TD]
[TD]ffmpeg -i zxcv.mp4 -ss 00:03:20 -t 00:00:7 -codec copy c.mp4[/TD]
[TD][/TD]
[/TR]
</tbody>[/TABLE]

I need formula very badly thanks for the help..))))))

 

[mrCostas]

You can write 00:00:00,00:01:05 one below the other and select the two cells and drag from the bottom right corner up to the 5 hour mark.