How do I delete data files in storage?

I am not sure if I understand your query correctly. If you are referring to the uploaded files to the form while submitting the form, the files can be deleted by editing the submission or deleting the entire submission.

If you are referring to Exported Data in the Data section you may click on X mark of the downloaded files to delete the files.

Hope this information helps! Let us know if you are referring something different. We will be happy to assist you further. 

Thank Kiran.
I found the options you pointed me to under my account settings.
I can be more clear now. The usage says I have 36MB out there. But I
don't think I should have 36MB; I deleted the messages in the submissions
view.
The report says I have three messages, but only one is viewable because I
deleted the other two.
The other two were file upload tests with my first form. That's why the
data in the report above is 36MB - it includes the data from the two upload
tests I ran even after I've deleted the submissions. I deleted two of
those three submissions from the submission view, but the data did not go
with it as reflected by the 36MB.
From the data section under account settings I did the export request and
the ZIP file appeared.
So as you instructed I deleted that ZIP file. This also has not changed
the 36MB on record as the amount to data space I am using on your service.
How do I delete the data shown in the upload space? I don't need any of
that, they're all tests.
Also, once I'm actually using this, can I manage that storage space as I
manage submissions. Once I get a submission and download the message and
any attachments, I'll be done, those attachments may or may not be put to
use back on my live website. If I need them I'll put those files up on my
site servers for use. At that point I'll have no use for the data still
sitting over with you at JotForm, yet I'll still be increasing continuously
my storage limits if I can't manage the Upload Space.
Please tell me how I can manage the upload space by deleting files and or
submissions so the space I actually occupy is below 100MB.
If I can't do this I'll probably abandon JotForm and sort out a means for
creating my own forms and then managing the files uploaded on a storage
space I can control. If I can do this then I'll probably sign up for an
account as soon as my volumes warrant it. Thank you.
--Bill
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I have checked your account and see that there is any form titled 'Send us files and commentary' in the Trash folder. This form has 2 submissions with 21 files uploaded which will be also counted in the occupied storage space since you can restore the form along with the submissions. If you need this form for later use, you may restore the form and then delete the submissions to clear the storage space.

Hope this information helps! 

OK. Got it. I see you can purge the trash. That wasn't apparent. I purged the old form and everything with it. That's good. Then I purged the one remaining test submission and the data went and the form stayed. That's better. Thanks for the help.
Best regards,
--Bill McCahey
201-561-2216
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