How do I convert XLSX to CSV?
Before converting XLSX file to CSV you need to consider the motive behind it Converting to get the content only (Small amount of data) - You can just open it in MS Excel ( save it as .csv choose mac and windows as per requirement) Converting to get the content only (Huge amount of data) - You may need to use some tool to extract huge data in your required format. Csv is ama seperated values files which will not support any format or calculation this should be kept in mind while conversion.
How do I convert XLSX to CSV in Linux with a command line?
First install gnumeric code . Typically for Debian youll run sudo apt install gnumeric code Then use the CLI utility ssconvert to do the conversion ssconvert code Pushify Review Free Browser Push Notification Service - Push Notification Info s
How convert CSV to PST or XLSX to PST?
I know only one way to convert or impot CSV XSLX or other files into the PST it to import them as a single attachments. Not many people know that Outlook may store any of data inside the PST file. For example you may create archive of Excel files in a single PST file. The full process is described in this article Importing any files to Outlook PST file for files archiving s However if you want to import excel worksheet into email it is better to copy and past the content as Office products have wide integration the data may be inserted like this. If you want to import the CSV data into Outlook PST file you may use menu Import & Export and then select From other program or file thenplete the importing wizard.
How can we convert an .xlsx file to .csv without changing the column format?
Ill chime is as #3 that you cannot. A CSV file is a pure file and has no real formatting stored with the data just the data as defined by the delimiters. You can see that if you open the in a editor. When Excel opens such a file it analyzes the information between delimiters and decides at time of loading if it has numeric or values. That is about all you geting from CSV. You have to remember the purpose of a CSV file is to port (import or export) information from some other source such as a database or other repository. If you want formatting and conditional formatting formulas colors VBA or anything else that Excel can provide then CSV is not your medium. So that begs an answer what is it you are trying to aplish by taking an Excel file to CSV format?
What is the efficient way to convert large Excel files (.xls & .xlsx, 1 million rows, 100 columns) to CSV or JSON file without facing memory issue in coding?
There exists extension to Apache POI library which implements streaming capabilities monitorjbl s It is memory efficient as much as possible as it provides API for Row and Cell level. NOTE It does support only XLSX data format old XLS is not supported and as per my understanding you have to read it into memorypletely.
What if I convert an XLSX file to CSV and then try to read and update the records in Mongo?
It is possible to directly read the xlsx in java Apache POI - the Java API for Microsoft Documents s and directly into into mongoDB Java MongoDB Insert a document s . if you really want to convert xlsx to CSV and read that is also possible. Reading is CSV file in Java How to read and parse CSV file in Java s Python Reading and Writing CSV Files in Python 3 Real Python s and many other language is simple and straightforward you can do it by following the examples. once you read the data you can insert into MongoDB by following the examples above.