Ole::Storage::FormatError: OLE2 signature is invalid

问题:

I want to read an Excel File in my Rails Application.

This is how I open my Excel file and read it.

doc = Spreadsheet.open('./try.xls', "r") sheet = doc.worksheet 0 sheet.each do |row| array_rows << row.to_a end 

I have it as a rake task.When I try to Read this file it throws an error.

Ole::Storage::FormatError: OLE2 signature is invalid 

What is happening? what should I do?

回答1:

The .xls file must be saved in EXCEL 2003 format. So File-->Save As from All Formats dropdown select the Excel year 2003

This solved my problem

回答2:

On Mac I had to save it as Excel 97-2004(.xls) to get it to work

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