With this method:
Dim f As Aspose.Cells.FileFormatInfo = Aspose.Cells.FileFormatUtil.DetectFileFormat("really_old.xls")
I am able to detect
f.FileFormatType = FileFormatType.Excel95
I realize your product info says you support "Excel 97/2000/XP/2003/2007/2010/2013"
Is there any way to access the contents of these older format spreadsheets? Or is simply detecting the format as far as Aspose.Cells can go?