Downloading attachments Google took me to this site. Gmail app download button is opaque. Apparently sdcard/Downloads is the plaCe to look. Download exists on my Sony tablet but does not include the file I "downloaded". is it just a typo by your colleague? Anywhere this stuff is documented? We shouldn't just have to guess. Makes me nostalgic for Windows or old bog-standard Unix!
You can find the downloaded attachments in /sdcard/documents/ directory. If you can't find it then use a file explorer app like ES File Explorer to search for it.