Opening .dae file

Hello, I am trying to open .dae file, but I dont see the button to import it. Screenshot of blender gui is in attachment. Is it possible to open .dae file somehow? Thanks for answers

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What version of blend er are you using ? Official version or custom build ? Installer or zip file. Operating system etc

I am using version 2.72 installed by command “apt-get install blender” on Debian Jessie 64bit.

Blender version is 2.72, installed by “apt-get install blender” on Debian Jessie 64bit.

I am using Blender 2.72 installed by “apt-get install blender” on Debian Jessie 64bit.