Hi Ohana_5849.,
Yes, you can save documents and data files to Document Cloud.
Open this link https://cloud.acrobat.com/ and go to Files > Document Cloud.
Then click on upload icon as shown in the screenshot below:

Browse the location where the file is saved and select the file to upload.
It will be saved in the Document Cloud.
When you need to make changes to the file, you need to open the same link and select the file in Document Cloud.
At right you will get an option to download the file. Click on that and save it to make the changes on that file.
Check the screenshot below:

To delete the file, select that file and click on delete option at bottom right as shown in the screenshot above.
Let us know if you have any questions or need any help.
Regards,
Meenakshi