How do you have csv archive files exported from WinCC flexible RT or a panel displayed graphically on the PC?
In Runtime mode of WinCC flexible the tag values can be stored in archives and evaluated at later. These tag archives are difficult to read outside the panel and cannot be evaluated graphically without WinCC.
Entry ID 60520367 provides an Excel application for analyzing archives generated with WinCC (TIA Portal). This tool is compatible with archives generated with WinCC flexible configurations.