Open Old .mxd files on ArcGIS Oline

Discussion created by staylor32 on May 1, 2013
Latest reply on May 1, 2013 by dlaw-esristaff
I have a couple old .mxd files and not sure how old it is. I go to "add a new layer from file" on a map and it says that I can not open a zipped file or gps file. This file is neither of these files, it is .mxd. How can I open this file on ArcGIS Online?