How do you open a forgotten number lock of a echolac suitcase?

To open a forgotten number lock on an Echolac suitcase, first try to recall any possible combinations you may have used. If that doesn't work, you can attempt to reset the lock by gently pressing the release button (if available) and turning the dials to see if it opens. Alternatively, you can carefully apply pressure to the lock while rotating the dials to feel for the correct combination. If none of these methods work, contacting Echolac customer support or a locksmith may be necessary for assistance.