Anonymizing spreadsheet data and metadata with anonymousXL
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Abstract
In spreadsheet risk analysis, we often encounter spreadsheets that are confidential. This might hinder adoption of spread- sheet analysis tools, especially web-based ones, as users do not want to have their confidential spreadsheets analyzed. To address this problem, we have developed AnonymousXL, an Excel plugin that makes spreadsheets anonymous with two actions: 1) remove all sensitive metadata and 2) obfus- cate all spreadsheet data within the Excel worksheets such that it resembles, untraceably, the original values.