Parse also older Excel files in zzzs/ and extract time series of some meaningful data _per doctor type_, per _region_, per _municipality_ eg * number of doctors * number of doctors accepting / not accepting (as in excels) * availability (sum, avg, min, max....) * load (sum, avg, min, max....) ...
Parse also older Excel files in zzzs/ and extract time series of some meaningful data per doctor type, per region, per municipality eg
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