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I am using Mathcad Release 15.0 and DatecodeN/A
Error opening files
Here are the errors that I faced
An unrecoverable engine error was encountered end_exception
Is the file from a newer version of MathCAD Prime?
MathCAD 15 cannot open file from MathCAD Prime.
The Mathcad reaction to a Prime file is "Failed to open document".
Potentially your Mathcad file is corrupt.
Please attach the file, so we may be able to help you. [In case this forum doesn't accept it, enclose it in .ZIP archive.]
Success!
Luc