Saving report

Hi. I have just started using a macbook, having previously used a windows laptop. I have downloaded excel 2011 for mac but when I try to export reports, excel cannot find the file that I previously used as the saved report from zoho. When I used my old laptop, I got a message at the bottom of the screen giving the option to save as but this doesn't happen with the mac for some reason. So it simply puts the file in the download folder. I then have to save it, i presume, as the same name I gave it when i was using the old laptop. However, a file that i created that uses the data in that saved file does not recognise the location of the newly saved file, presumably because its location is on a mac instead of the windows laptop?

Can you help?