Now and again when I open my .xlsm workbook it says unreadable content found. I click OK to recover the sheet and it opens fine and then I click enable content. My workbook is set so that each time it opens it runs loads of macros that checks the date and time and if it's within 1 hour of a set time it will fetch data from the web and paste it. However when the workbook opens as unreadable content and I then enable content it runs the macros regardless of the time being within the 1 hour window. Sometimes the workbook opens without an issue and then everything works fine and the macros only run within the time window. Any ideas at all to why this could be?