vexport ${aFile} ${format}

if { [file exists ${aFile}] } {
    puts "Export to ${format} file was done."
    set filesize [file size ${aFile}]
# Check if difference of size is more 5%
    if { $filesize < $size && [expr 1.*($size - $filesize)/$size] > 0.05 } {
	puts "Error: Export to ${format} file was done but file has a different size ($filesize instead of $size)."
    }
} else {
    puts " Faulty: Export to${format}  file was not done."
}