Hi i have created a custom module and added a custom file upload link
Here is the output image
System.xml
<?xml version="1.0"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:module:Magento_Config:etc/system_file.xsd">
<system>
<tab id="test" translate="label" sortOrder="200">
<label>
Test
</label>
</tab>
<section id="zipcode" translate="label" type="text" sortOrder="120" showInDefault="1" showInWebsite="1" showInStore="1">
<label>Zipcode</label>
<tab>test</tab>
<resource>Learn_Module::config_module</resource>
<group id="config" translate="label" type="text" sortOrder="10" showInDefault="1" showInWebsite="0" showInStore="0">
<label>Check delivery postcode</label>
<field id="enable" translate="label" type="select" sortOrder="1" showInDefault="1" showInWebsite="1" showInStore="1">
<label>Enabled</label>
<source_model>Magento\Config\Model\Config\Source\Yesno</source_model>
</field>
<field id="postcodes" translate="label" type="textarea" sortOrder="20" showInDefault="1" showInWebsite="1" showInStore="1">
<label>Postcodes</label>
<comment>Comma-separated</comment>
<depends><field id="enable">1</field></depends>
</field>
<!-- csv file upload starts here -->
<field id="custom_file_upload" translate="label" type="Magento\Config\Block\System\Config\Form\Field\File" sortOrder="30" showInDefault="1" showInWebsite="1" >
<label>Upload Csv File</label>
<backend_model>Magento\Config\Model\Config\Backend\File</backend_model>
<upload_dir>pub/media/myupload</upload_dir>
</field>
<!-- file upload ends here -->
<field id="success_message" translate="label" type="text" sortOrder="21" showInDefault="1" showInWebsite="1" showInStore="1">
<label>Success message</label>
<depends><field id="enable">1</field></depends>
</field>
<field id="error_message" translate="label" type="text" sortOrder="22" showInDefault="1" showInWebsite="1" showInStore="1">
<label>Error message</label>
<depends><field id="enable">1</field></depends>
</field>
</group>
</section>
</system>
</config>
Now i want to upload csv file of zipcodes but am not totaly sure how to upload it can anyone please help me