Please post product specific questions and comments in their designated forums.

As to your question, that depends on how the data you want to insert is comprised. The general concept is thus:

1) open linksid.txt for reading, retrieve last inserted ID, close file.
2) make backup of links.db
4) open links.db for writing, open old data file for reading
5) for each record read, increment ID number
6) format and/or insert values where needed (in Links format)
7) print new record to links.db
8) close old data file & links.db
9) open linksid.txt for writing, print new value, close.