So, I'm an IT PM in a local government. We are moving from on prem to cloud, and should be shutting our onprem servers down soon....with that comes a move to O/M365 apps for enterprise (Office ProPlus) but several of the apps we use (read this: Oracle) do not support M365 apps for enterprise, and the roadmap (if there is one) is wayyyyy out there (Oracle - Dec2021).
So my Finance Dept heavily uses PeopleSoft products and several Admins across the City interact with these spreadsheets. I am concerned that now Office 2013, which is still on the majority of machines due to these support issues, is not receiving Feature updates -- how will it interact with SharePoint/Teams among users with the current unsupported version?
I asked the Finance Admin to thought experiment with me, and we would take an obsolete file with public data and try to use it in a typical scenario (I have ProPlus, she is in 2013) -- she came back and told me the accountants ae often using compatibility mode, as many of their documents were originally 97-2003 spreadsheets.
I'm very concerned the fan is going to get very dirty - am I unnecessarily borrowing trouble, or do we need to have an intervention. It's a repeated backwards/forwards issue that concerns me. Especially when loading/downloading from SP.
How do you all deal with Excel when NOT-"intergrated" applications require your departments to use multiple versions?