Validating an Excel file in a Rails app

I have a Rails app which allows users to upload Excel files which need to be validated according to some pre-defined rules. For eg. sheet 1 contains two columns, a numerical id and a name; sheet 2 contains three other columns etc..

Are there any Ruby gems/libraries that开发者_运维知识库 can help in doing these validations?

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It's not really hard to do that by yourself. I highly recommend Spreadsheet gem.