Numbering a Text Document

[JGM22]

I have many documents that I have separated a would like to highlight the entire group and then add numbering to the beginning of each title in a batch process.

Currently I have had to rename each document one at a time with the number.

To take it a step further, it would be nice to be asked what number to start with.

ie: start with number 5

ie: documents

a
b
c
d

would be
1. a
2. b
3. c
4. d