Error while uploading XLS file while using Import XLS to database smart service

When uploading XLS file (97-2003), the Import XLS to database node fails with error:

"the suppled data appears to be in OLE2 format. You are calling the part of POI that deals with OOXML documents. You need to call a different part of POI to process this data (eg. HSSF instead of XSSF)

However, the node works perfectly fine with XLSX file format. Only for XLS format, it throws error inconsistently.

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