Error opening file Line 162

Hi, I'm trying to open a .sxl file yet it keeps showing the following error dialog

Error using open (line 162)

file does not contain a valid simulink model in SLX format could not open source package. Any idea on how to fix it?

I'm using MATLAB R2018a. Thank you.

Answer 1

[madhan ravi]

https://www.mathworks.com/matlabcentral/answers/222601-i-have-a-problem-with-opening-own-simulink-files?s_tid=answers_rc1-1_p1_MLT

[Karla Adames]

I copied the file to c:temp and I keep getting the same error.