This message can appear for several reasons such as you are loading a worksheet that exceeds resources, the worksheet had not been saved properly, or you are using a feature that is not supported. This can also happen when webmail (for example, Microsoft® Outlook® Web Access) corrupts the Maple attachment.

Solution 1: Try restarting Maple and reloading the file.

Solution 2: If after restarting Maple the problem still persists, you can increase the resources available to the loading mechanism:

	Windows
	In the launch.ini file in the bin directory of your Maple installation, add the following:   java_args=-DentityExpansionLimit=1000000

	Mac
	In the Info.plist file, in the Application directory, add the following:   java_args=-DentityExpansionLimit=1000000

	Linux
	In the maple script file, located in the bin directory of your Maple installation, append the following to the end of JVM_OPTIONS:   java_args=-DentityExpansionLimit=1000000

Solution 3: Webmail is known to corrupt XML-based documents, including Maple worksheets. If the document was corrupted when sent via webmail, it is recommended that you zip the Maple worksheets first.  

Alternatively, if possible, you could make the file available on a network share instead of sending the file by email.

Technical Support