if you have more than one tax year software installed then clicking on the tax file will try to open the wrong software. You must first start the application in the Application Folder for that year and once the software is running, use the top menu bar File -> Open Tax Return to locate the .tax20xx file the the proper (xx) year. Note that if the .tax file has a state return included you must first install the state software before it can be opened or you will get that message.
**Disclaimer: This post is for discussion purposes only and is NOT tax advice. The author takes no responsibility for the accuracy of any information in this post.**
