Contents Contain Match - Odd Behavior


Hi Everyone,
I'm having an issue with a "contents contain match" rule that was working previously but is not doing so now. The rule was set to scan the file (an Excel XLSX file) for "Billing Period[...][start date]-[end date]." Oddly enough, I cannot get Hazel to match contents at all on this specific file. I have also tried:
- The match on a plain text file, providing the exact text necessary for the match.
- Matching for any text on the original file.
- Matching for any letter on the original file.
Nothing works. Am I overlooking something? Screenshot of the file text is below.
Thanks in advance for any input!
The text in the XLSX File:
