fill blank cells in excel with text

2:14

2:26

11:09

1:17

1:51

00:40

1:00

00:30

1:55

4:23

2:06

00:18

00:25

1:12

2:38

2:11

00:53

2:04

1:23

00:58

4:29

00:39

1:31

3:30

7:19

4:21

3:56

00:51

4:13

2:02

00:47

00:54

3:06

4:22

7:43

5:29

2:28

00:43

00:37

6:04

3:08

7:36

1:44

2:43

4:36

2:30

1:47

00:46

2:09

00:32

00:19

1:50

1:51

3:30

3:05

00:54

00:25

00:17

1:52

00:40