Excluding Excel, operating expenses increased $0.3 million or 5.1%, primarily reflecting the timing of new product development cost and increased travel.

Oct 27, 2022 / CFO / receipt, needs a key / Phil Fain, CFO | earnings call 2022-10-27 | transcript 4b366518-94e9-4723-8b2b-0c8b62705059 | chars 11811-11964 | segment 11

This increase primarily reflects our investment in engineering and sales resources for new product development and market launches, partially offset by lower travel costs.

Apr 29, 2021 / CFO / receipt, needs a key / Phil Fain, CFO | earnings call 2021-04-29 | transcript be1753ab-4789-4bdf-a853-ad216de88a1d | chars 6751-6922 | segment 6