Confusion regarding output from Get-ADReplAccount

[Kurt-MT]

First time using hashcat, and am having difficulty getting it to work.

This command:

Get-ADReplAccount -All -Server dc1 | Format-Custom -View hashcatnt | Out-File -FilePath c:\temp\data.txt -Encoding ascii

yields output like this:

sum.dude:3ff966736c064feafdba792a0e02c099

I'm getting two error messages, depending on the commands used.
"Separator unmatched" from these commands
hashcat -m1100 -a0 --username ./data.txt ./rockyou.txt
hashcat -m2100 -a0 --username ./data.txt ./rockyou.txt
hashcat -m2100 -a0 ./data.txt ./rockyou.txt

"Token length exception" from this command
hashcat -m1100 -a0 ./data.txt ./rockyou.txt

I've verified that there are no spaces in data.txt. I copied the opened data.txt file in Notepad++, then pasted it into a vi document on my The-Distribution-Which-Does-Not-Handle-OpenCL-Well (Kali) box.

So, questions:
1) Is the output from Get-ADReplAccount in DCCS or DCCS2 format (or something else)?
2) How do I massage the file to get it running?

Thanks,
Kurt