I saved a BlockBase project in EQ4. Why can I open it back up in BlockBase?
If you have Electric Quilt software on your computer, you can open any BlockBase project in EQ and design quilts using the blocks from BlockBase. Once you have opened and saved the project in EQ, you will no longer be able to open it in BlockBase. It is strongly recommended that you use Save As to save the project in your EQ project folder as soon as you open it up. This will help you from inadvertently clicking on Save and re-saving the BlockBase project in the BlockBase project folder thus preventing you from opening the project with BlockBase again. See the topic Saving a BlockBase Project in EQ on page 31 of the BlockBase user manual for step-by-step instructions.