It was an old post... but finally able to experiment using sample video above... Sony Vegas Pro 13.453 or Magix Vegas Pro 14.161 can read MXF XF-AVC files successfully without complexity.
If the playback is slow, just right click on these files in Project Media > Create Video Proxy.
Same file preparations to DJI Osmo's footages.
On the contrary, Sony Catalyst Browse version 2016.2.0.353 (2.3) still cannot read these MXF XF-AVC files!
I've been interested in this camera and the XC15. I downloaded the "original" files from the vimeo links in the gadgetflux.net review. The files with the following properties open in Vegas Pro 12, 13 and 14. Vegas Pro 9, 10 and 11 were unable to deal with them.
Complete name : \\P8Z77\P8Z77-Video 0\Cameras\Canon XC10\449370135.mxf
Format : MXF
Format version : 1.3
Format profile : OP-1a
Format settings : Closed / Complete
File size : 722 MiB
Duration : 20 s 800 ms
Overall bit rate : 291 Mb/s
Encoded date : 2015-08-25 20:06:22.000
Writing application : CANON XC10 1.00
Video
ID : 2
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High 4:2:2 Intra@L5.1
Format settings, CABAC : No
Format settings, GOP : N=1
Format settings, wrapping mode : Frame
Codec ID : 0D01030102106001-0401020201323001
Duration : 20 s 800 ms
Bit rate : 290 Mb/s
Width : 3 840 pixels
Height : 2 160 pixels
Display aspect ratio : 16:9
Frame rate : 25.000 FPS
Color space : YUV
Chroma subsampling : 4:2:2
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 1.397
Stream size : 718 MiB (99%)
Color range : Limited
Color primaries : BT.709
Transfer characteristics : BT.709
Matrix coefficients : BT.709
Audio #1
ID : 3
Format : PCM
Format settings, Endianness : Little
Format settings, wrapping mode : Frame (AES)
Codec ID : 0D01030102060300
Duration : 20 s 800 ms
Bit rate mode : Constant
Bit rate : 768 kb/s
Channel(s) : 1 channel
Sampling rate : 48.0 kHz
Frame rate : 25.000 FPS (1920 spf)
Bit depth : 16 bits
Stream size : 1.90 MiB (0%)
Audio #2
ID : 4
Format : PCM
Format settings, Endianness : Little
Format settings, wrapping mode : Frame (AES)
Codec ID : 0D01030102060300
Duration : 20 s 800 ms
Bit rate mode : Constant
Bit rate : 768 kb/s
Channel(s) : 1 channel
Sampling rate : 48.0 kHz
Frame rate : 25.000 FPS (1920 spf)
Bit depth : 16 bits
Stream size : 1.90 MiB (0%)
Other #1
ID : 1-Material
Type : Time code
Format : MXF TC
Time code of first frame : 00:11:08:15
Time code settings : Material Package
Time code, striped : Yes
Other #2
ID : 1-Source
Type : Time code
Format : MXF TC
Time code of first frame : 00:11:08:15
Time code settings : Source Package
Time code, striped : Yes
Other #3
Type : Time code
Format : SMPTE TC
Muxing mode : SDTI
Time code of first frame : 00:11:08:15
Back before SCS/Sony programs wrote most of their stuff to their own folders, all the codec's would be shared. You could get the newer codec by installing a demo that included the newer codec version & it would be supported among all the SCS/Sony programs (or have your mpeg-2 files open in another SCS/Sony program, for example). At one point Sony changed this. So give this a shot:
Find Program Files - Sony - Vegas 13 - FileIO Plug-Ins folder. Find the respective folder you want for the codec & copy it. Find the Program Files - Sony - Vegas 10 - FileIO Plug-Ins folder, make a backup of the respective codec folder & paste the one from Vegas 13 in to the Vegas 10 location. Restart Vegas. Could very well work. I've done it for some codecs that supported new formats in 12/13 for my copy of 10, like new quicktime/avi container codec versions.
EDIT: I doubt Vegas 14 will work with the sony versions, but might be worth a shot.