Help:Uploading Files
Click on the upload file link at the bottom of the page (NOTE: you must be logged in to have this option).
Click on the "choose file" button to choose the file you would like to upload
Choose the file on your local drive that you would like to upload to OpenEI.
Click "upload file" to upload onto OpenEI
Finally, use the file name along with the instructions below to insert into the wikipage.
Links
Link to description page
If you put a colon (:) before File:, the image will not be embedded and the link will lead to the description page of the file.
[[:File:Example.jpg]] [[:File:Example.jpg|Sunflowers]]
results in
Link directly to file
You can use the pseudo-namespace “Media” to link directly to a file, bypassing the description page.
[[Media:Example.jpg]] [[Media:Example.jpg|Sunflowers]]
results in
You can also use:
[[Special:FilePath/Example.jpg]]
which can be used to link to a potential file, even if it doesn't exist. You can also use:
{{FILEPATH:Example.jpg}}
which generates an external URL to the file inline: https://openei.org/w/images/a/a9/Example.jpg