Do MS access executable files run on IPAD or OS?

No, they don't.  Apple does not use the same operating system.  They use OSX, not DOS or Windows.  'executable files' have to interface with the operating system to work.

Nope not posible becouse of diffrent Operating system.
If you install windows on your MAC with bootcamp their is no problem. Or virtualize a windows envirement on your mac using virtualbox, or paralels or another brand.

Kind regards

I just looked it up and the iPad does Not use the same CPU as Windows computers.

Depending on how self contained the EXE file is, you may be able to run in on OS X using wine.  It will be faster and less resource intensive than running any VM.  You can use MacPorts or Homebrew and install wine.

@serialband: The Crossovers for Mac site says MS Access runtime apps will not run on Crossovers, so I would be very surprised if they would run on Wine.

thanks  .  This is a good enough answer

Oh, MS Access.  I parsed that sentence incorrectly because of the missing capitalization in the subject.

Export it as a CSV file and import it to a Mac capable database, such as Filemaker.  That way you don't have to run Windows in a VM or switch to BootCamp.

If you're doing this for an office, with multiple users and connections, you still need to run MS Access on a Windows system somewhere.
If your Mac users only need to read the database: http://echoone.com/filejuicer/formats/formats?f=mdb
You can write to the database from a Mac:  http://razorsql.com/articles/ms_access_mac_os_x.html

WineHQ's AppDB has a better list of what Crossover can run and what status it is.  The site is hosted by Codeweavers, the makers of Crossover.  Crossover is based on Wine and only lists the latest working programs that people still use.  As far as I can tell, it's a GUI front end for users that don't do well on the command line and their list is incomplete and a bit inaccurate at times.  Use the WineHQ AppDB for a better updated list of what can actually run in Crossover.  All the Platinum and Gold level stuff will run well.  Silver and Bronze require some tweaking that Crossover users are likely not capable of doing themselves, but can probably run with the correct DLLs or tweaking.

Access 2.0 and Access 2002 both run fully and are listed as Gold level.

Access 2000, Access 2003, Access 2007 and Access 2010(32 bit) are listed as Bronze, meaning someone tested and installed it but didn't have success with all its features.  The WineHQ comments suggest that DLLs were missing, hence the partial functionality.

Access 2013(32 bit) and Access 97 are listed as garbage.  That's just the extent of testing.  From the comments it looks like Office 2013 requires a connection to Microsoft to complete the licensing, so it couldn't be installed by the tester.  The linux user that tested this probably just stopped at that point without figuring out how to install it offline.  You can individually download Office patches and manually apply them.

Those are just lists of people attempting with just Wine.  There is an additional helper utility script called winetricks, written to help download the correct DLLs for different programs that just need proper DLLs.  The reason for some of those Bronze listings are due to people not figuring out which DLLs or tweaks were needed.  I see that Access 2003 and Access 2007 and their corresponding tools are listed in Winetricks, so there is some additional functionality provided for them that regular Wine, and therefore Crossovers, doesn't provide.

If you're using an older MS Access and willing to put in that extra effort, then Wine could still be an alternative.  The VM is just simpler to work with, but uses more resources than just running things in Wine.  It depends on how much effort you want to put into it and how much RAM and CPU you have for your system.