Saving files to mapped drive

Hi,

I have a macro which saves files to other mapped network drives. Can anyone tell me if there is any reason for using one of the methods below rather than the other? Would one be quicker, more efficient, more reliable, etc? Thanks for any help

Method 1:

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Method 2:

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And, would it make any difference if I was saving .csv files rather than .xls?


Cheers
free