Issues with virtualbox

Lab Support
#1

after downloading the ubuntu box,when i try to create an ubuntu template on virtual box,i dont see the vdi after navigating to where i stored the file on my file manager…however,when i check my file manager…the image

problem_with_virtualbox
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#2

virtual-box-issues
virtual-box-issues1366×761 145 KB

when i try to click on the 64bit file ,i dont see the the image