how can i sort a the below array. 
("MAINUI_PF_4.0.001.8Q.7769","MAINUI_PF_4.0.001.10BA.8669","MAINUI_PF_
+4.0.001.10AV.7890","MAINUI_PF_4.0.001.10AU.1898")

[download]
Expected result: 
MAINUI_PF_4.0.001.10BA.8669
MAINUI_PF_4.0.001.10AU.1898
MAINUI_PF_4.0.001.10AV.7890
MAINUI_PF_4.0.001.8Q.7769

[download]

In reply to Question on alpanumeric sorting by sridhar8183

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