Originally Posted by Motorcycle Mama
If you have the 4.5 version of the phone OS installed on the device, you will get Documents to Go (Basic) for free. If you register and upgrade Documents to Go (also for free), you will get Sheet to Go which can read and edit Excel files on the device.
Otherwise, if you place the file on your Media Card, you can access it from a computer by placing the BlackBerry in Mass Storage Mode.
I do have 4.5 but don't have Documents to Go. I only have Sheets to Go and Word to Go. Any idea? I've tried to move the excel sheet to my memory card using the desktop manager but it would not do it. I then tried doing simply drag and drop by going into My Computer and I was able to get it on my device but when I try to open it using Word to Go it does not recognize the excel file.