Exponent: how to avoid that format in a text?

[Lelik]

In Plan-maker (and Text-maker), I often need to type something like “31E xyz”, but the program automatically interprets the “E” as part of a number in scientific notation and displays it as an exponent.
I can’t seem to find any way to stop that from happening. Even if I add an apostrophe before the text, or set the cell format to Text (via Format → Cell → Text), it still shows it as an exponent.
Is there any way to permanently disable this behavior, so that anything I type is treated literally, not as a number in scientific notation?

[SuperTech]

Thank you for reporting this issue. Neither PlanMaker nor TextMaker includes this feature in their current functionality. The behavior you're describing is likely caused by a third-party application running in the background. We recommend checking your active processes and recently installed software to identify it.