How to replace regular expressions?

Question

Regular Expressions

I have an excel file with a huge (~10.000) number of cells, each with a line of text. Each line specifies a day and a title. This line has a certain format:

"Financial analytics" - means that financial analytics will be held every week

"1,3,5 n Monitoring" - means that Monitoring will be only on 1,3 and 5 weeks of the current month

"cr 2 n Finance " - means that the Finance will be held every week this month, except for the 2nd week.

And a number of such designations and their combinations.

The task is to extract useful data from such lines:

Array of weeks, if specified
Whether the designation "Except" is specified
Name
And so on

The problem is that sometimes it's all edited by a person, hence the constant typos, departure from the structure, and so on.
Now a regular expression is used, but its length has become too long and it has become difficult to maintain. There is a feeling that neural networks can handle this, since a person calmly determines the meaning of a line and it is always interpreted unambiguously, but I have a rather poor idea about this, so I ask you if this is so. I would also be grateful for a hint that you can read and look at this topic, since everything that I found, unfortunately, has so far turned out to be useless. Thanks in advance for any replies!