Wait for a file in directory

[Gintaras]

Most File functions throw error if failed.
But normally there is no reason why Write() could fail.

Macro Macro1448

Code:

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File f.Open("$Desktop$\Document.txt" "w+")

rep
,f.Write("line1[]line2[]line3[]")
,err break
,_i+1
,if(_i>100) break