I want to create a word document in MS Word 2007 with numbering starting from second level and proceeds upto fourth level. I don't want first level and second level numbering should start from 6.6.

6.6. Storing & Exchange of data requirements

6.6.1. Storing of data to External medium
6.6.1.1. Description
6.6.1.2.Inputs
6.6.1.3. Process
6.6.1.4. Outputs

6.6.2. Importing data from external storage


6.6.2.1. Description
6.6.2.2.Inputs
6.6.2.3. Process
6.6.2.4. Outputs

6.7. Filming requirements
6.7.1. Transfer Images to Film
6.7.1.1. Description
6.7.1.2.Inputs
6.7.1.3. Process
6.7.1.4. Outputs

Should I define a new multilevel format or can it be done by modifying existing format?

Thanks

Easily-enough done via multi-level numbered Heading Styles. See attached. Note the use of a hidden Heading level 1 - this allows you to start a later series @ 7, if needed; otherwise you could use one less heading level all round and just type the first '6.' before the level numbers.

Attached Files

Heading Demo.docx (24.0 KB, 24 views)

__________________
Cheers,
Paul Edstein
[Fmr MS MVP - Word]

If you have not followed the instructions here in setting up your multi-level list, you should. How to create numbered headings or outline numbering in Ribbon Versions of Word by Shauna Kelly

I believe you will come out ahead if you format level 1 even if you never use it.

P.S. Paul Edstein (macropod) understands this stuff better than I do.