Dear Reader,
Greetings of the day!!

I have an 2010 excel workbook containing multi-data validation and macros.

I will be using this file more frequently while 'm travelling.

My requirement is:

I will be using these workbook in 3 computers, namely computer1, computer2, computer3.

If i make any changes to excel workbook on computer1, then workbook on comp2 and workbook on comp3 gets automatically updated via internet connection.
The same follows, if i make any changes in excel file on computer2, then file on comp1 and file on comp3 gets automatically updated via internet connection.

By this i can be updated all the time even on travelling.

please help!!

Regards,
Chetan