xls reading into an array
C#
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Hi, I have a big array n*n matrix in an .xls (Excel Spreadsheet) and I want to read it into the my C# which calculates the inverse of it. I am not sure how to read the xls file into a 2D array. n is variable, i.e. it is not known beforehand. It can be 300, 400 0r 500 or any value. Basically, the user gives the input as the file name in which he has storted the matrix. And does anyone aware of any fast and qucik algorithm by which I can check if a large matrix is singular or not. Regards