Oct 14, · Part 1. 7 Useful Solutions to Microsoft Excel Has Stopped Working. Microsoft Excel has stopped working when saving may result from many matters, like lots of details and contents contained in Excel, the file is generated by a third-party application, add-ins interference, outdated Excel version, and more. If you are running Windows 10, choose Start > All apps > Windows System > Run > type Excel /safe in the Run box, then click OK. If you are running Windows 8, click Run in the Apps menu > type Excel /safe in the Run box, then click OK. If you are running Windows 7, click Start > type Excel /safe in Search programs and files, then click OK.
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