Can I open Q03 file format through the website or any other way? I'm missing PDF copies from '03 & '04 but have the native file format.

 

Getting started

Are you referring to QuickTax? Unfortunately, we no longer support QuickTax products, so we no longer have software or codes available.

However, you may be able to get the information from those returns from the CRA using their My Account service: https://www.canada.ca/en/revenue-agency/services/e-services/e-services-individuals/account-individua...