How do I save a workspace variable to a .txt file?

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I tried using the 'save' function, but I can't seem to get it to work. I want to append a .txt file by saving a variable "excel" to it. I want to be able to do this repeatedly.
I tried the code
save(saving.txt, excel, '-append-')
Jan on 21 Aug 2012
And I'm sure you got an error message when you run this command. Then it would be a good idea 1. to read the message, and 2. to post it here when the solution is not clear after 1.

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Accepted Answer

José-Luis on 21 Aug 2012
Edited: José-Luis on 21 Aug 2012
save('myFile.txt', 'excel', '-ASCII','-append');
Walter Roberson
Walter Roberson on 19 Jan 2019
Without the -append every save will erase all existing content of the file.

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