During an experiment I write values to ~30 different tables and at the end of the experiment I export all of the tables to Excel. Initially when I ran the export (8 months ago) the export would take 5-10 minutes. Over time the export time has slowly increased to where it now takes an hour to export the tables. Is there a way to speed up the Excel export process? Why was it running so quickly before and so slowly now? This problem is not unique to my computer. My coworker faces the same issue as well. It's also not an issue with the model. The version of the model that ran quickly before runs slowly now.