Storing and processing text files

First question: I have a SwiftUI app that runs calculations based on number values and number arrays, both one and two-dimensional, stored in text files. However these text files are stored on my computer, and I wish to have them within the app itself so the app can run the calculations on my phone and other devices apart from my computer.

Second question: I'm not sure how to read data from text files. I temporarily made JSON files but this isn't a long-term solution. I wish to be able to have the app read something like

Apples: 0

Energy: "10"

Mode: "Photo"

Depth: 2.0

and be able to store it in an object with the corresponding properties and values so that they may be used in the calculations.

All data values in a plain text file are stored as a series of characters. Even numbers are stored as characters. Each character is stored in computer memory as one or two bytes.

All data values in a plain text file are stored as a series of characters. Even numbers are stored as characters. Each character is stored in computer memory as one or two bytes.

Storing and processing text files
 
 
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