SheetRoutineExcel and Google Sheets tutorials that end with a working spreadsheet. Every formula is recalculated and checked, and the file is attached.2026-11-11T00:00:00-07:00https://sheetroutine.com/Track a monthly budget in Excel with SUMIFShttps://sheetroutine.com/guides/monthly-budget-tracker/2026-11-11T00:00:00-07:00Eight planned categories and a 20-row expense log. SUMIFS adds up what was actually spent; Groceries is the one category over budget, by $37.15. Total spent $2,782.69 of $3,005.00 planned.Count working days between two dates in Excel with NETWORKDAYShttps://sheetroutine.com/guides/working-days-between-dates/2026-11-11T00:00:00-07:00A November project, 2 to 30 November 2026: 21 working days, 19 once two holidays are excluded. Calendar days, weekend days and days left are all checked against an independent computation.Clean messy names in Excel with TRIM, CLEAN and PROPERhttps://sheetroutine.com/guides/clean-messy-text-data/2026-11-11T00:00:00-07:00Seven names as imported. One formula cleans five; a longer formula catches the line break and the non-breaking space the short one misses. UNICHAR returns #NAME? in LibreOffice 24.2.7.2, so the file uses CHAR.Summarise sales by category in Excel with SUMIFS, COUNTIFS and AVERAGEIFShttps://sheetroutine.com/guides/sales-summary-by-category/2026-11-11T00:00:00-07:00Eighteen sales rows across three categories and two regions. Tools: 8 orders, $556.16; all categories: 18 orders, $1,449.46. A category with no sales shows “No sales” instead of #DIV/0!.SheetRoutine launches: two checked spreadsheet tutorials, files includedhttps://sheetroutine.com/guides/loan-amortization-schedule/2026-11-10T00:00:00-07:00A loan amortization schedule in Excel with PMT, IPMT and PPMT, and a price lookup with INDEX and MATCH. Both workbooks were recalculated in LibreOffice 24.2.7.2 and compared against independent computations; both files are attached.Build a loan amortization schedule in Excel with PMT, IPMT and PPMThttps://sheetroutine.com/guides/loan-amortization-schedule/2026-11-10T00:00:00-07:00A $25,000 loan at 6.5% over 5 years. Monthly payment $489.15, total interest $4,349.22, final balance $0.00. All 60 rows match an independent Python computation within $0.01.Look up a price in Excel with INDEX and MATCHhttps://sheetroutine.com/guides/price-lookup/2026-11-10T00:00:00-07:00A price list with the SKU between the product name and the price, so VLOOKUP cannot reach left. HD-104 returns $21.50; a missing SKU returns “Not in price list”. XLOOKUP is shown for Excel 365/2021+ and Google Sheets, and measured as unsupported in LibreOffice 24.2.7.2.