I have an old .mxd file 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?
Not sure what you saying here. Are you trying to open the mxd by adding a new layer or your trying to add data to the old mxd by selecting add a new layer from file.
If you are trying to open the MXD you can do it simply by double clicking on it in Windows Explorer.
IF you cannot add data to it then you should create a new MXD.
Open your old mxd. Start a new session and open a blank one.
Go to the layout view of he old one and using the Select Elements tool select everything in one big sweep.
Go to the new session in the layout view. grap the existing empty Data Frame and slide it aside. Paste the selected elements into your new session.
Delete the empty Data Frame.
Save your mxd. It should now be fully compatible with a your version.
I have an old .mxd file 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?