Begin by logging into your Everhour account. Navigate to the reporting section and utilize the export feature to download the data you need. Everhour allows exporting data in various formats such as CSV or Excel, both of which are suitable for importing into a MySQL database. Choose the CSV format for ease of use in the subsequent steps.

Open the exported CSV file in a spreadsheet application like Excel or Google Sheets. Review the data to ensure all necessary information is included and clean up any inconsistencies or errors. Verify that the data types (such as dates and numbers) are correct and consistent. Save the cleaned file as a CSV if using a spreadsheet application for editing.

If you do not already have a MySQL database set up, you need to create one. Install MySQL Server on your local machine or a server if necessary. Use the MySQL Workbench or command line to create a new database. For example, you can use the command:
```sql
CREATE DATABASE everhour_data;
```

Define a new table structure in your MySQL database to match the columns of your CSV file. Use appropriate data types for each column based on the data in your CSV file. Here is an example SQL command to create a table:
```sql
CREATE TABLE time_entries (
id INT PRIMARY KEY,
project_name VARCHAR(255),
user_name VARCHAR(255),
hours DECIMAL(5,2),
date DATE
);
```
Adjust the column names and data types according to your CSV file's structure.

Use the MySQL `LOAD DATA INFILE` command to import the CSV data into your MySQL table. Ensure that the CSV file is accessible to the MySQL server. Here is an example of how to load the data:
```sql
LOAD DATA INFILE '/path/to/your/csvfile.csv'
INTO TABLE time_entries
FIELDS TERMINATED BY ','
ENCLOSED BY '"'
LINES TERMINATED BY '\n'
IGNORE 1 ROWS;
```
Replace `/path/to/your/csvfile.csv` with the actual path to your CSV file. The `IGNORE 1 ROWS` clause is used to skip the header row of the CSV file.

Once the data is loaded into the MySQL table, verify its integrity. Run a few SELECT queries to check that the data has been imported correctly. Check for any discrepancies in the data types, missing values, or truncation issues. For example:
```sql
SELECT * FROM time_entries LIMIT 10;
```

To facilitate future data imports, write a script or batch file that automates the export from Everhour, data cleaning, and importing into MySQL. This could involve using shell scripting, Python, or any other scripting language you are comfortable with. Schedule this script to run periodically using a task scheduler (like cron jobs in Unix-based systems or Task Scheduler in Windows) to keep your MySQL database updated with the latest data from Everhour.