Loading data from multiple xls files to oracle table -

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i have multiple xls files . have stored these file names in table below

table name sequence

file1.xls 1 file2.xls 2 file3.xls 3

each file has 3 fields

field1 field2 filed3

now have load data in table has 4 column

field1 field2 field3 field4 , filed4 should field sequnce of file name.

please suggest way load data files

if convert excel spreadsheets csv can load them using external tables.


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