Did it say the File Name is invalid? If so try the suggestion below from the Sage Knowledge Base
Cannot upload ROE or Tax file on CRA website.

Products
Sage 50—Canadian Edition

Description
When I try to upload my GST tax file, I get a message about "invalid file name".
When I try to upload the ROE or Tax file, I get an "Access Denied" error message.




Cause
Some security settings are blocking the internet browser to access the location of the eFile, either locally or on another computer.


Resolution
Option 1: Browser compatibility

Download a different web browser and use the new web browser to do the upload.
Option 2: Permission restricted on original location

Save the eFile, that you want to upload, locally in another location: ex. Desktop or a folder in the C:\ drive.
Open the agency website.
When ready to upload, browse to the new location where you saved you eFile.
Option 3: Browser has some restrictions

Contact your IT technician to resolve the rights issues of your internet browser.
Option 4: Employee with no paycheque; Warning message only

Note: this warning message my appear if an employee on the Employee Detail Report exists with a zero Year To Date amounts or no paycheques for the year




Related resources
How do I upload ROE to Service Canada website?
Category
Performance

Entitlement
Open

In some cases, the export file is almost completely valid - it will import into ROE WEB, but then you have to go into each employee and fix the reason-for-leaving code. I haven't figured out yet what causes this. It's just something to keep in mind if your file imports to ROE WEB okay, but then fails the validation process within ROE WEB.