This is a test of commonsense. Complete the next sentence:

How to replace the cutter blade in a foodsaver machine
Open the cover and locate the blade assembly from underneath.
Insert a small screwdriver or dull table knife under the retaining tab of the blade holder while gently pulling on the blade cartridge.
Be careful not to loose the small spring on the blade assembly.
These pictures show the retaining tab and the notch on the blade cartridge that it snaps over. Find the similar retaining tab on the blade cartridge.