Tape Backup Utility Can I Cancel This Backup File?

Can I cancel this backup file? - tape backup utility

I have a backup file, but it takes a lot of space and slow down my laptop. Can I safely delete this file? I bought the team in October / November 2006.

Here are the following:
Backup.bkf
File Type: File backup of Microsoft
Opens with: NT Backup Tape
Location: C: \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\
Size: 2.83 GB (3046576128 bytes)
Size on disk: 2.83 GB (3046588416)
Created on: Monday, 04 de diciembre 2006 08:49:16
Updated: Sunday, 01 April 2007 02:33:00 PM
Access: Today, 31 March 2008
Attributes: archive