How to dissect a file path and keep extension Matlab

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Lucas S
Lucas S 2019-4-15
评论： Lucas S 2019-4-15
I have my file path in a string :
path = 'D:\Users\Documents\MATLAB\capella_to_matlab.txt'
How can i put only the extension in an other string (Not just for this file but for any file i put in path variable) for example :
extension = '.txt'
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Stephen23
Stephen23 2019-4-15
编辑：Stephen23 2019-4-15
Do NOT use path as a variable name! This shadows the important inbuilt path function.
To get the file extension use fileparts:
>> P ='D:\Users\Documents\MATLAB\capella_to_matlab.txt';
>> [~,~,E] = fileparts(P)
E = '.txt'

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