You are using Acronis Data Cloud 7.8
Your Customers are registered in JP1 data center. Since update to 7.8, you noticed that the Space usage CSV report contains the below details:
"Project-Id-Version: PACKAGE VERSION
POT-Creation-Date: 2016-01-01 01:01+0100
PO-Revision-Date: 2015-11-13 10:42+0300
Language-Team: Acronis L10N Team
Content-Type: text/plain; charset=UTF-8
Plural-Forms: nplurals=1; plural=0;
X-Generator: Acronis xliff2po
Issue in the product. Acronis development team has found an issue within the Reporting service: "Gettext" metadata is displayed for empty strings in the reports.
The issue has been fixed in Acronis Backup Cloud 7.8 update 1.