Run-time error '53': File not found - Run-time error '53': File not found Description You may see this runtime error when opening the Early Power Estimator (EPE) tool. This is because EPE extracts its DLLs and data to the system %TEMP% folder when it's opened. Sometimes, one of these files may become corrupt and cause an error in the title. Resolution To fix this error, follow the instructions below: Close all Excel processes (including EPE). Go into Windows Explorer (File explorer) Type % TEMP%\EPE_Tool into the address bar Remove everything in this directory . Try opening EPE again. Custom Fields values: ['novalue'] Troubleshooting 1508098184 False ['novalue'] ['FPGA Dev Tools Quartus® Prime Software Pro'] 19.4 19.4 ['Programmable Logic Devices'] ['novalue'] ['novalue'] ['novalue']