Could you please try to use a tFileList component to iterate your somefile_yyyymmdd.csv file in a given directory based on a file mask pattern?
Depends on when you want to parse it.
If it's the same day you can use in the file name :
"somefile_" + TalendDate.getDate("yyyMMdd") + ".csv"
If you want to parse it one every week, use a tFileList then iterate into a tFileInputDelimited.
Hope it'll help.
Use the below code -
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