Created attachment 111909 [details] bugdoc (PPTX) Chart horizontal axis has numbers instead of dates. I believe this is another instance of the "Chart Data Table" issue, whereby Charts that are backed by a data-table and not a sheet, cannot store formats, and hence we can't automatically get that from the source. Ultimately (like MS Office 2013(?)) we need to rip/replace the chart data-table, and force the use of a mini spreadsheet to back all charts - to properly solve this issue.
I can confirm with Version: 4.5.0.0.alpha0+ Build ID: 7f476fea47f06a7f8cc961dd4f6595a524346fa5 TinderBox: Linux-rpm_deb-x86_64@46-TDF, Branch:master, Time: 2014-12-27_23:36:28
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