Error while opening the Storyline Source file

Hello Aparna28,

Sorry to hear about your project file. There may still be a working version of your project in your temp files that you can use to recover it partially. Here's how to check:

1. Open this folder in Windows Explorer: %appdata%\Articulate\Storyline
2. Scan the contents of this folder for a file that starts with your project's name. If you find one, copy it to your desktop. If you find more than one, copy the latest version to your desktop.
3. Change the file extension of the copy on your desktop from *.tmp to *.story.
4. Double-click the file to open it in Storyline.

You can also open a case with our support team here if you'd like us to test your project file to see if there's anything we can recover from it. 

File corruption is unpredictable, and there's no straightforward way to determine what causes it. Common causes are environmental (disk errors, power outages, improper shutdowns), viruses, failed Windows updates, and even file size (i.e., very large files have a higher risk of corrupting). Consider using the preventative measures described in this article to protect your project files.

I have both of these several times. One reason is from where the file is stored. Keep them on your hard drive. Storyline files don't like to be stored on the cloud, OneDrive or other places. The other reason I have gotten them is the way I tried to open them. I have noticed they like to be opened the same way each time. Now I open Articulate open first, then I find the story file and open it. If you just click on the file, it sometimes glitches on me. As for someone is using it, it should let you open an copy or make a copy. Then just resave it.

Good luck